Updated runtime files. Remove HiLink commands.
diff --git a/runtime/syntax/yacc.vim b/runtime/syntax/yacc.vim
index 8736baf..01e342e 100644
--- a/runtime/syntax/yacc.vim
+++ b/runtime/syntax/yacc.vim
@@ -1,9 +1,9 @@
" Vim syntax file
" Language: Yacc
" Maintainer: Charles E. Campbell <NdrOchipS@PcampbellAfamily.Mbiz>
-" Last Change: Apr 02, 2015
-" Version: 13
-" URL: http://mysite.verizon.net/astronaut/vim/index.html#vimlinks_syntax
+" Last Change: Aug 31, 2016
+" Version: 15
+" URL: http://www.drchip.org/astronaut/vim/index.html#SYNTAX_YACC
"
" Options: {{{1
" g:yacc_uses_cpp : if this variable exists, then C++ is loaded rather than C
@@ -87,7 +87,7 @@
" ---------------------------------------------------------------------
" Define the default highlighting. {{{1
-if !exists("did_yacc_syn_inits")
+if !exists("skip_yacc_syn_inits")
hi def link yaccBrkt yaccStmt
hi def link yaccComment Comment
hi def link yaccCurly Delimiter