Normalize modelines

syntax/haml.vim

@@ -82,4 +82,4 @@ hi def link hamlError                  Error
 
 let b:current_syntax = "haml"
 
-" vim:set sts=4 sw=4:
+" vim:set sw=2:

syntax/sass.vim

@@ -53,6 +53,4 @@ hi def link sassClass                   Type
 
 let b:current_syntax = "sass"
 
-"if main_syntax == 'css'
+" vim:set sw=2:
-  "unlet main_syntax
-"endif