Updated runtime files. Remove version checks for Vim older than 6.0.

runtime/syntax/dtml.vim

@@ -9,20 +9,13 @@
 " hacked out of the Zope Quick Reference in case someone finds something
 " sensible to do with them. I certainly haven't.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " First load the HTML syntax
-if version < 600
-  source <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-endif
+runtime! syntax/html.vim
 
 syn case match
 
@@ -196,25 +189,17 @@ syn match   htmlTagN     contained +<\s*[-a-zA-Z0-9]\++hs=s+1 contains=htmlTagNa
 syn match   htmlTagN     contained +</\s*[-a-zA-Z0-9]\++hs=s+2 contains=htmlTagName,htmlSpecialTagName,dtmlIsTag,dtmlAttribute,dtmlMethod,@htmlTagNameCluster
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dtml_syntax_inits")
-  if version < 508
-    let did_dtml_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink dtmlIsTag			PreProc
-  HiLink dtmlAttribute		Identifier
-  HiLink dtmlMethod			Function
-  HiLink dtmlComment		Comment
-  HiLink dtmlTODO			Todo
-  HiLink dtmlSpecialChar    Special
+HiLink dtmlIsTag			PreProc
+HiLink dtmlAttribute		Identifier
+HiLink dtmlMethod			Function
+HiLink dtmlComment		Comment
+HiLink dtmlTODO			Todo
+HiLink dtmlSpecialChar    Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "dtml"