Updated runtime files.  Remove version checks for Vim older than 6.0.
diff --git a/runtime/syntax/trasys.vim b/runtime/syntax/trasys.vim
index cfecc1c..1e7f75c 100644
--- a/runtime/syntax/trasys.vim
+++ b/runtime/syntax/trasys.vim
@@ -8,11 +8,8 @@
 
 
 
-" 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
 
@@ -21,11 +18,7 @@
 let fortran_free_source=1
 
 " Load FORTRAN syntax file
-if version < 600
-  source <sfile>:p:h/fortran.vim
-else
-  runtime! syntax/fortran.vim
-endif
+runtime! syntax/fortran.vim
 unlet b:current_syntax
 
 
@@ -136,40 +129,32 @@
 
 
 " 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_trasys_syntax_inits")
-  if version < 508
-    let did_trasys_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 trasysOptions		Special
-  HiLink trasysSurface		Special
-  HiLink trasysSurfaceType	Constant
-  HiLink trasysSurfaceArgs	Constant
-  HiLink trasysArgs		Constant
-  HiLink trasysOperations	Statement
-  HiLink trasysSubRoutine	Statement
-  HiLink trassyPrcsrSegm	PreProc
-  HiLink trasysIdentifier	Identifier
-  HiLink trasysComment		Comment
-  HiLink trasysHeader		Typedef
-  HiLink trasysMacro		Macro
-  HiLink trasysInteger		Number
-  HiLink trasysFloat		Float
-  HiLink trasysScientific	Float
+HiLink trasysOptions		Special
+HiLink trasysSurface		Special
+HiLink trasysSurfaceType	Constant
+HiLink trasysSurfaceArgs	Constant
+HiLink trasysArgs		Constant
+HiLink trasysOperations	Statement
+HiLink trasysSubRoutine	Statement
+HiLink trassyPrcsrSegm	PreProc
+HiLink trasysIdentifier	Identifier
+HiLink trasysComment		Comment
+HiLink trasysHeader		Typedef
+HiLink trasysMacro		Macro
+HiLink trasysInteger		Number
+HiLink trasysFloat		Float
+HiLink trasysScientific	Float
 
-  HiLink trasysBlank		SpecialChar
+HiLink trasysBlank		SpecialChar
 
-  HiLink trasysEndData		Macro
+HiLink trasysEndData		Macro
 
-  HiLink trasysTodo		Todo
+HiLink trasysTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "trasys"