fix a typo

Author: roylez

syntax/slime.vim

@@ -41,7 +41,7 @@ syn match slimeTag           "\w\+[><]*"         contained contains=htmlTagName
 syn match slimeIdChar        "#{\@!"        contained nextgroup=slimeId
 syn match slimeId            "\%(\w\|-\)\+" contained nextgroup=@slimeComponent
 syn match slimeClassChar     "\."           contained nextgroup=slimeClass
-syn match slimeClass         "\%(\w\|-\|\/\d+\|:\(\w\|-\)\+\)\+" contained nextgroup=@slimComponent
+syn match slimeClass         "\%(\w\|-\|\/\d+\|:\(\w\|-\)\+\)\+" contained nextgroup=@slimeComponent
 
 syn match slimeInlineTagChar "\s*:\s*"      contained nextgroup=slimeTag,slimeClassChar,slimeIdChar