[rstyle] correctly parse block comments in CSS
[rstyle] correctly parse block comments in CSS

Provide more precise info where error during parsing is appeared

olifre/root,olifre/root,root-mirror/root,root-mirror/root,root-mirror/root,olifre/root,root-mirror/root,karies/root,karies/root,karies/root,olifre/root,karies/root,root-mirror/root,olifre/root,karies/root,root-mirror/root,root-mirror/root,olifre/root,olifre/root,root-mirror/root,karies/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,karies/root,karies/root,olifre/root,karies/root,olifre/root,olifre/root,karies/root,root-mirror/root