Updated runtime files. Remove HiLink commands.
diff --git a/runtime/syntax/jgraph.vim b/runtime/syntax/jgraph.vim
index 43fc427..a29a21a 100644
--- a/runtime/syntax/jgraph.vim
+++ b/runtime/syntax/jgraph.vim
@@ -34,14 +34,12 @@
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
-command -nargs=+ HiLink hi def link <args>
-HiLink jgraphComment Comment
-HiLink jgraphCmd Identifier
-HiLink jgraphType Type
-HiLink jgraphNumber Number
+hi def link jgraphComment Comment
+hi def link jgraphCmd Identifier
+hi def link jgraphType Type
+hi def link jgraphNumber Number
-delcommand HiLink
let b:current_syntax = "jgraph"