Update runtime files.

Includes changing &sw to shiftwidth() for all indent scripts.
diff --git a/runtime/syntax/help.vim b/runtime/syntax/help.vim
index 9f056ee..70c4e65 100644
--- a/runtime/syntax/help.vim
+++ b/runtime/syntax/help.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language:	Vim help file
 " Maintainer:	Bram Moolenaar (Bram@vim.org)
-" Last Change:	2016 Sep 02
+" Last Change:	2017 Jun 13
 
 " Quit when a (custom) syntax file was already loaded
 if exists("b:current_syntax")
@@ -54,7 +54,8 @@
   syn match helpIgnore		"." contained
 endif
 syn keyword helpNote		note Note NOTE note: Note: NOTE: Notes Notes:
-syn keyword helpWarning		WARNING: Warning:
+syn keyword helpWarning		WARNING WARNING: Warning:
+syn keyword helpDeprecated	DEPRECATED DEPRECATED: Deprecated:
 syn match helpSpecial		"\<N\>"
 syn match helpSpecial		"\<N\.$"me=e-1
 syn match helpSpecial		"\<N\.\s"me=e-2
@@ -171,6 +172,7 @@
 hi def link helpSpecial		Special
 hi def link helpNote		Todo
 hi def link helpWarning		Todo
+hi def link helpDeprecated	Todo
 
 hi def link helpComment		Comment
 hi def link helpConstant	Constant