diff --git a/runtime/doc/ft_rust.txt b/runtime/doc/ft_rust.txt
index d5f4080..7fe7b7c 100644
--- a/runtime/doc/ft_rust.txt
+++ b/runtime/doc/ft_rust.txt
@@ -1,70 +1,70 @@
-*ft_rust.txt*	For Vim version 9.0.  Last change: 2017 Nov 02
+*ft_rust.txt*	For Vim version 9.0.  Last change: 2022 Oct 17
 
 This is documentation for the Rust filetype plugin.
 
 ==============================================================================
-CONTENTS                                                      *rust*
+CONTENTS						      *rust*
 
-1. Introduction                                                   |rust-intro|
-2. Settings                                                    |rust-settings|
-3. Commands                                                    |rust-commands|
-4. Mappings                                                    |rust-mappings|
+1. Introduction							  |rust-intro|
+2. Settings						       |rust-settings|
+3. Commands						       |rust-commands|
+4. Mappings						       |rust-mappings|
 
 ==============================================================================
-INTRODUCTION                                                      *rust-intro*
+INTRODUCTION							  *rust-intro*
 
 This plugin provides syntax and supporting functionality for the Rust
 filetype.
 
 ==============================================================================
-SETTINGS                                                       *rust-settings*
+SETTINGS						       *rust-settings*
 
 This plugin has a few variables you can define in your vimrc that change the
 behavior of the plugin.
 
-                                                                *g:rustc_path*
+								*g:rustc_path*
 g:rustc_path~
 	Set this option to the path to rustc for use in the |:RustRun| and
 	|:RustExpand| commands. If unset, "rustc" will be located in $PATH: >
 	    let g:rustc_path = $HOME .. "/bin/rustc"
 <
 
-                                                  *g:rustc_makeprg_no_percent*
+						  *g:rustc_makeprg_no_percent*
 g:rustc_makeprg_no_percent~
 	Set this option to 1 to have 'makeprg' default to "rustc" instead of
 	"rustc %": >
 	    let g:rustc_makeprg_no_percent = 1
 <
 
-                                                              *g:rust_conceal*
+							      *g:rust_conceal*
 g:rust_conceal~
 	Set this option to turn on the basic |conceal| support: >
 	    let g:rust_conceal = 1
 <
 
-                                                     *g:rust_conceal_mod_path*
+						     *g:rust_conceal_mod_path*
 g:rust_conceal_mod_path~
 	Set this option to turn on |conceal| for the path connecting token
 	"::": >
 	    let g:rust_conceal_mod_path = 1
 <
 
-                                                          *g:rust_conceal_pub*
+							  *g:rust_conceal_pub*
 g:rust_conceal_pub~
 	Set this option to turn on |conceal| for the "pub" token: >
 	    let g:rust_conceal_pub = 1
 <
 
-                                                     *g:rust_recommended_style*
+						     *g:rust_recommended_style*
 g:rust_recommended_style~
-        Set this option to enable vim indentation and textwidth settings to
-        conform to style conventions of the rust standard library (i.e. use 4
-        spaces for indents and sets 'textwidth' to 99). This option is enabled
+	Set this option to enable vim indentation and textwidth settings to
+	conform to style conventions of the rust standard library (i.e. use 4
+	spaces for indents and sets 'textwidth' to 99). This option is enabled
 	by default. To disable it: >
 	    let g:rust_recommended_style = 0
 <
 
-                                                                 *g:rust_fold*
+								 *g:rust_fold*
 g:rust_fold~
 	Set this option to turn on |folding|: >
 	    let g:rust_fold = 1
@@ -76,39 +76,39 @@
 	2		Braced blocks are folded. 'foldlevel' is left at the
 			global value (all folds are closed by default).
 
-                                                  *g:rust_bang_comment_leader*
+						  *g:rust_bang_comment_leader*
 g:rust_bang_comment_leader~
 	Set this option to 1 to preserve the leader on multi-line doc comments
 	using the /*! syntax: >
 	    let g:rust_bang_comment_leader = 1
 <
 
-                                                 *g:ftplugin_rust_source_path*
+						 *g:ftplugin_rust_source_path*
 g:ftplugin_rust_source_path~
 	Set this option to a path that should be prepended to 'path' for Rust
 	source files: >
 	    let g:ftplugin_rust_source_path = $HOME .. '/dev/rust'
 <
 
-                                                       *g:rustfmt_command*
+						       *g:rustfmt_command*
 g:rustfmt_command~
 	Set this option to the name of the 'rustfmt' executable in your $PATH. If
 	not specified it defaults to 'rustfmt' : >
 	    let g:rustfmt_command = 'rustfmt'
 <
-                                                       *g:rustfmt_autosave*
+						       *g:rustfmt_autosave*
 g:rustfmt_autosave~
 	Set this option to 1 to run |:RustFmt| automatically when saving a
 	buffer. If not specified it defaults to 0 : >
 	    let g:rustfmt_autosave = 0
 <
-                                                       *g:rustfmt_fail_silently*
+						       *g:rustfmt_fail_silently*
 g:rustfmt_fail_silently~
 	Set this option to 1 to prevent 'rustfmt' from populating the
 	|location-list| with errors. If not specified it defaults to 0: >
 	    let g:rustfmt_fail_silently = 0
 <
-                                                       *g:rustfmt_options*
+						       *g:rustfmt_options*
 g:rustfmt_options~
 	Set this option to a string of options to pass to 'rustfmt'. The
 	write-mode is already set to 'overwrite'. If not specified it
@@ -116,13 +116,13 @@
 	    let g:rustfmt_options = ''
 <
 
-                                                          *g:rust_playpen_url*
+							  *g:rust_playpen_url*
 g:rust_playpen_url~
 	Set this option to override the URL for the playpen to use: >
 	    let g:rust_playpen_url = 'https://play.rust-lang.org/'
 <
 
-                                                        *g:rust_shortener_url*
+							*g:rust_shortener_url*
 g:rust_shortener_url~
 	Set this option to override the URL for the URL shortener: >
 	    let g:rust_shortener_url = 'https://is.gd/'
@@ -130,9 +130,9 @@
 
 
 ==============================================================================
-COMMANDS                                                       *rust-commands*
+COMMANDS						       *rust-commands*
 
-:RustRun  [args]                                                    *:RustRun*
+:RustRun  [args]						    *:RustRun*
 :RustRun! [rustc-args] [--] [args]
 		Compiles and runs the current file. If it has unsaved changes,
 		it will be saved first using |:update|. If the current file is
@@ -150,7 +150,7 @@
 		If |g:rustc_path| is defined, it is used as the path to rustc.
 		Otherwise it is assumed rustc can be found in $PATH.
 
-:RustExpand  [args]                                              *:RustExpand*
+:RustExpand  [args]						 *:RustExpand*
 :RustExpand! [TYPE] [args]
 		Expands the current file using --pretty and displays the
 		results in a new split. If the current file has unsaved
@@ -169,7 +169,7 @@
 		If |g:rustc_path| is defined, it is used as the path to rustc.
 		Otherwise it is assumed rustc can be found in $PATH.
 
-:RustEmitIr [args]                                               *:RustEmitIr*
+:RustEmitIr [args]						 *:RustEmitIr*
 		Compiles the current file to LLVM IR and displays the results
 		in a new split. If the current file has unsaved changes, it
 		will be saved first using |:update|. If the current file is an
@@ -180,7 +180,7 @@
 		If |g:rustc_path| is defined, it is used as the path to rustc.
 		Otherwise it is assumed rustc can be found in $PATH.
 
-:RustEmitAsm [args]                                             *:RustEmitAsm*
+:RustEmitAsm [args]						*:RustEmitAsm*
 		Compiles the current file to assembly and displays the results
 		in a new split. If the current file has unsaved changes, it
 		will be saved first using |:update|. If the current file is an
@@ -191,7 +191,7 @@
 		If |g:rustc_path| is defined, it is used as the path to rustc.
 		Otherwise it is assumed rustc can be found in $PATH.
 
-:RustPlay                                                          *:RustPlay*
+:RustPlay							   *:RustPlay*
 		This command will only work if you have web-api.vim installed
 		(available at https://github.com/mattn/webapi-vim).  It sends the
 		current selection, or if nothing is selected, the entirety of the
@@ -204,7 +204,7 @@
 		|g:rust_shortener_url| is the base URL for the shortener, by
 		default "https://is.gd/"
 
-:RustFmt                                                       *:RustFmt*
+:RustFmt						       *:RustFmt*
 		Runs |g:rustfmt_command| on the current buffer. If
 		|g:rustfmt_options| is set then those will be passed to the
 		executable.
@@ -214,12 +214,12 @@
 		|g:rustfmt_command|. If |g:rustfmt_fail_silently| is set to 1
 		then it will not populate the |location-list|.
 
-:RustFmtRange                                                  *:RustFmtRange*
+:RustFmtRange						       *:RustFmtRange*
 		Runs |g:rustfmt_command| with selected range. See
 		|:RustFmt| for any other information.
 
 ==============================================================================
-MAPPINGS                                                       *rust-mappings*
+MAPPINGS						       *rust-mappings*
 
 This plugin defines mappings for |[[| and |]]| to support hanging indents.