Update runtime files.
diff --git a/runtime/ftplugin/falcon.vim b/runtime/ftplugin/falcon.vim
index 4fc135b..affca38 100644
--- a/runtime/ftplugin/falcon.vim
+++ b/runtime/ftplugin/falcon.vim
@@ -3,6 +3,7 @@
 " Author:       Steven Oliver <oliver.steven@gmail.com>
 " Copyright:    Copyright (c) 2009-2013 Steven Oliver
 " License:      You may redistribute this under the same terms as Vim itself
+" Last Update:  2020 Oct 10
 " --------------------------------------------------------------------------
 
 " Only do this when not done yet for this buffer
@@ -14,7 +15,7 @@
 let s:cpo_save = &cpo
 set cpo&vim
 
-setlocal softtabstop=4 shiftwidth=4 fileencoding=utf-8
+setlocal softtabstop=4 shiftwidth=4
 setlocal suffixesadd=.fal,.ftd
 
 " Matchit support
diff --git a/runtime/ftplugin/fortran.vim b/runtime/ftplugin/fortran.vim
index 385f155..b9ba3c4 100644
--- a/runtime/ftplugin/fortran.vim
+++ b/runtime/ftplugin/fortran.vim
@@ -1,13 +1,13 @@
 " Vim settings file
 " Language:	Fortran 2008 (and older: Fortran 2003, 95, 90, 77, 66)
-" Version:	0.50
-" Last Change:	2020 Apr 20
-" Patched By:	Eisuke Kawashima
+" Version:	(v52) 2020 October 07
 " Maintainer:	Ajit J. Thakkar <ajit@unb.ca>; <http://www2.unb.ca/~ajit/>
 " Usage:	For instructions, do :help fortran-plugin from Vim
 " Credits:
-" Useful suggestions were made by Stefano Zacchiroli, Hendrik Merx, Ben
-" Fritz, and David Barnett.
+"  Version 0.1 was created in September 2000 by Ajit Thakkar.
+"  Since then, useful suggestions and contributions have been made, in order, by:
+"  Stefano Zacchiroli, Hendrik Merx, Ben Fritz, David Barnett, Eisuke Kawashima,
+"  and Doug Kearns.
 
 " Only do these settings when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -119,7 +119,7 @@
 endif
 
 " File filters for :browse e
-if has("gui_win32") && !exists("b:browsefilter")
+if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
   let b:browsefilter = "Fortran Files (*.f;*.for;*.f77;*.f90;*.f95;*.f03;*.f08;*.fpp;*.ftn)\t*.f;*.for;*.f77;*.f90;*.f95;*.f03;*.f08;*.fpp;*.ftn\n" .
     \ "All Files (*.*)\t*.*\n"
 endif
diff --git a/runtime/ftplugin/python.vim b/runtime/ftplugin/python.vim
index 64c1a87..000ddf5 100644
--- a/runtime/ftplugin/python.vim
+++ b/runtime/ftplugin/python.vim
@@ -3,7 +3,7 @@
 " Maintainer:	Tom Picton <tom@tompicton.co.uk>
 " Previous Maintainer: James Sully <sullyj3@gmail.com>
 " Previous Maintainer: Johannes Zellner <johannes@zellner.org>
-" Last Change:	Sun 17 Mar 2019
+" Last Change:	Mon, 5 October 2020
 " https://github.com/tpict/vim-ftplugin-python
 
 if exists("b:did_ftplugin") | finish | endif
@@ -14,6 +14,7 @@
 setlocal cinkeys-=0#
 setlocal indentkeys-=0#
 setlocal include=^\\s*\\(from\\\|import\\)
+setlocal define=^\\s*\\(def\\\|class\\)
 
 " For imports with leading .., append / and replace additional .s with ../
 let b:grandparent_match = '^\(.\.\)\(\.*\)'
@@ -38,7 +39,7 @@
 setlocal commentstring=#\ %s
 
 if has('python3')
-  setlocal omnifunc=python3complete#Complete 
+  setlocal omnifunc=python3complete#Complete
 elseif has('python')
   setlocal omnifunc=pythoncomplete#Complete
 endif
@@ -115,35 +116,18 @@
 
 if !exists("g:python_recommended_style") || g:python_recommended_style != 0
     " As suggested by PEP8.
-    setlocal expandtab shiftwidth=4 softtabstop=4 tabstop=8
+    setlocal expandtab tabstop=4 softtabstop=4 shiftwidth=4
 endif
 
-" First time: try finding "pydoc".
-if !exists('g:pydoc_executable')
-    if executable('pydoc')
-        let g:pydoc_executable = 1
-    else
-        let g:pydoc_executable = 0
-    endif
-endif
-
-" Windows-specific pydoc setup
-if has('win32') || has('win64')
-    if executable('python')
-        " available as Tools\scripts\pydoc.py
-        let g:pydoc_executable = 1
-    else
-        let g:pydoc_executable = 0
-    endif
-endif
-
-" If "pydoc" was found use it for keywordprg.
-if g:pydoc_executable
-    if has('win32') || has('win64')
-        setlocal keywordprg=python\ -m\ pydoc\ 
-    else
-        setlocal keywordprg=pydoc
-    endif
+" Use pydoc for keywordprg.
+" Unix users preferentially get pydoc3, then pydoc2.
+" Windows doesn't have a standalone pydoc executable in $PATH by default, nor
+" does it have separate python2/3 executables, so Windows users just get
+" whichever version corresponds to their installed Python version.
+if executable('python3')
+  setlocal keywordprg=python3\ -m\ pydoc
+elseif executable('python')
+  setlocal keywordprg=python\ -m\ pydoc
 endif
 
 " Script for filetype switching to undo the local stuff we may have changed