Updated runtime files.  Remove version checks for Vim older than 6.0.
diff --git a/runtime/syntax/exim.vim b/runtime/syntax/exim.vim
index ff8066f..f9017ac 100644
--- a/runtime/syntax/exim.vim
+++ b/runtime/syntax/exim.vim
@@ -6,12 +6,9 @@
 " URL: http://trific.ath.cx/Ftp/vim/syntax/exim.vim
 
 " Setup
-if version >= 600
-	if exists("b:current_syntax")
-		finish
-	endif
-else
-	syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+	finish
 endif
 
 syn case match
@@ -91,27 +88,20 @@
 syn keyword eximKeyword server_secret client_name client_secret
 
 " Define the default highlighting
-if version >= 508 || !exists("did_exim_syntax_inits")
-	if version < 508
-		let did_exim_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink eximComment Comment
-	HiLink eximFixme Todo
-	HiLink eximEnd Keyword
-	HiLink eximNumber Number
-	HiLink eximDriverName Constant
-	HiLink eximConstant Constant
-	HiLink eximTime Constant
-	HiLink eximKeyword Type
-	HiLink eximSpecialChar Special
-	HiLink eximMacroName Preproc
-	HiLink eximTransport Identifier
+HiLink eximComment Comment
+HiLink eximFixme Todo
+HiLink eximEnd Keyword
+HiLink eximNumber Number
+HiLink eximDriverName Constant
+HiLink eximConstant Constant
+HiLink eximTime Constant
+HiLink eximKeyword Type
+HiLink eximSpecialChar Special
+HiLink eximMacroName Preproc
+HiLink eximTransport Identifier
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "exim"