Updated runtime files. Remove HiLink commands.
diff --git a/runtime/syntax/ist.vim b/runtime/syntax/ist.vim
index f3f005b..e34edac 100644
--- a/runtime/syntax/ist.vim
+++ b/runtime/syntax/ist.vim
@@ -39,19 +39,17 @@
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
-command -nargs=+ HiLink hi def link <args>
-HiLink IstInpSpec Type
-HiLink IstOutSpec Identifier
-HiLink IstString String
-HiLink IstNumber Number
-HiLink IstComment Comment
-HiLink IstTodo Todo
-HiLink IstSpecial Special
-HiLink IstDoubleQuote Label
-HiLink IstCharacter Label
+hi def link IstInpSpec Type
+hi def link IstOutSpec Identifier
+hi def link IstString String
+hi def link IstNumber Number
+hi def link IstComment Comment
+hi def link IstTodo Todo
+hi def link IstSpecial Special
+hi def link IstDoubleQuote Label
+hi def link IstCharacter Label
-delcommand HiLink
let b:current_syntax = "ist"