Martin von Zweigbergk <martinvonz@google.com> [Thu, 18 May 2017 22:20:59 -0700] rev 32401
match: replace icasefsmatch() function by flag to regular match()
match() will soon gain more logic and we don't want to duplicate that
in icasefsmatch(), so merge the two functions instead and use a flag
to get case-insensitive behavior.