match: small tweak to PatternMatcher.visit_children_set
This makes it a bit more efficient (avoid a computation in case of early
return), and in my opinion clearer.
fixbundle(){ grep -v 'saving bundle'| grep -v 'saved backup'|\ grep -v added | grep -v adding |\ grep -v "unable to find 'e' for patching"|\ grep -v "e: No such file or directory"|\ cat}