Cleanup.

syntax_checkers/hss/hss.vim

@@ -1,4 +1,3 @@
-
 "============================================================================
 "File:        hss.vim
 "Description: Syntax checking plugin for syntastic.vim
@@ -20,27 +19,18 @@ function! SyntaxCheckers_hss_hss_IsAvailable()
     return executable('hss')
 endfunction
 
-if has('win32')
-    let s:dev_null = 'NUL'
-else
-    let s:dev_null = '/dev/null'
-endif
-
 function! SyntaxCheckers_hss_hss_GetLocList()
     let makeprg = syntastic#makeprg#build({
-		    \ 'exe': 'hss',
-		    \ 'args' : '-output ' . s:dev_null,
-		    \ 'fname': syntastic#util#shescape(expand('%')),
-		    \ 'filetype': 'hss',
-		    \ 'subchecker': 'hss' })
+	\ 'exe': 'hss',
+	\ 'args' : '-output ' . syntastic#util#DevNull(),
+	\ 'filetype': 'hss',
+	\ 'subchecker': 'hss' })
 
     let errorformat = '%E%f:%l: %m'
 
     return SyntasticMake({
-		    \ 'makeprg': makeprg,
-		    \ 'errorformat': errorformat,
-		    \ 'cwd': fnamemodify(expand('%'), ':h') })
-
+	\ 'makeprg': makeprg,
+	\ 'errorformat': errorformat })
 endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({