Use lmake instead make for ruby

Author: halorgium

syntax_checkers/ruby.vim

@@ -22,6 +22,6 @@ endif
 function! SyntaxCheckers_ruby_GetLocList()
     set makeprg=ruby\ -c\ %
     set errorformat=%-GSyntax\ OK,%E%f:%l:\ syntax\ error\\,\ %m,%Z%p^,%W%f:%l:\ warning:\ %m,%Z%p^,%-C%.%#
-    silent make!
+    silent lmake!
     return getloclist(0)
 endfunction