Merge pull request #1156 from bhcleek/fix-sameids-BufWinEnter

clear buffer-local BufWinEnter properly

Author: fatih

autoload/go/guru.vim

@@ -542,7 +542,7 @@ function! go#guru#ClearSameIds() abort
   endfor
 
   " remove the autocmds we defined
-  if exists("#BufWinEnter<buffer>")
+  if exists("#BufWinEnter#<buffer>")
     autocmd! BufWinEnter <buffer>
   endif
 endfunction