Updated runtime files. Remove HiLink commands.
diff --git a/runtime/syntax/scheme.vim b/runtime/syntax/scheme.vim
index ac50ead..af9a659 100644
--- a/runtime/syntax/scheme.vim
+++ b/runtime/syntax/scheme.vim
@@ -300,29 +300,27 @@
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
-command -nargs=+ HiLink hi def link <args>
-HiLink schemeSyntax Statement
-HiLink schemeFunc Function
+hi def link schemeSyntax Statement
+hi def link schemeFunc Function
-HiLink schemeString String
-HiLink schemeCharacter Character
-HiLink schemeNumber Number
-HiLink schemeBoolean Boolean
+hi def link schemeString String
+hi def link schemeCharacter Character
+hi def link schemeNumber Number
+hi def link schemeBoolean Boolean
-HiLink schemeDelimiter Delimiter
-HiLink schemeConstant Constant
+hi def link schemeDelimiter Delimiter
+hi def link schemeConstant Constant
-HiLink schemeComment Comment
-HiLink schemeMultilineComment Comment
-HiLink schemeError Error
+hi def link schemeComment Comment
+hi def link schemeMultilineComment Comment
+hi def link schemeError Error
-HiLink schemeExtSyntax Type
-HiLink schemeExtFunc PreProc
+hi def link schemeExtSyntax Type
+hi def link schemeExtFunc PreProc
-HiLink schemeLang PreProc
+hi def link schemeLang PreProc
-delcommand HiLink
let b:current_syntax = "scheme"