leading whitespace in atrule before : is not stripped #15
Description
/* before */
@MEDIA (min-width : 30px) {}
/* actual */
@media (min-width : 30px) {}
/* expected */
@media (min-width: 30px) {}{{ message }}
/* before */
@MEDIA (min-width : 30px) {}
/* actual */
@media (min-width : 30px) {}
/* expected */
@media (min-width: 30px) {}