Merge "Change an aapt "warning" from "*** " to "**** " (from three to four...

Merge "Change an aapt "warning" from "*** " to "**** " (from three to four stars). "*** " (three stars and a space) is the 'magic make error string'; so this change makes it easier to find the real issues/errors in build logs.  Besides, other aapt messages are "**** "."