Updated vimrc

sources_non_forked/syntastic/syntax_checkers/c/sparse.vim

@@ -9,7 +9,7 @@
 "             See http://sam.zoy.org/wtfpl/COPYING for more details.
 "============================================================================
 
-if exists("g:loaded_syntastic_c_sparse_checker")
+if exists('g:loaded_syntastic_c_sparse_checker')
     finish
 endif
 let g:loaded_syntastic_c_sparse_checker = 1
@@ -33,7 +33,7 @@ function! SyntaxCheckers_c_sparse_GetLocList() dict
     let loclist = SyntasticMake({
         \ 'makeprg': makeprg,
         \ 'errorformat': errorformat,
-        \ 'defaults': {'bufnr': bufnr("")},
+        \ 'defaults': {'bufnr': bufnr('')},
         \ 'returns': [0, 1] })
     return loclist
 endfunction