Use correct logic for removal

git-svn-id: svn://10.0.0.236/trunk@44451 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/webtools/tinderbox/clean.pl

@@ -33,7 +33,7 @@ chdir $tinderboxdir or die "Couldn't chdir to $tinderboxdir";
 # Remove files older than 7 days
 #
 sub files_to_remove {
-  unlink if /(?:\.gz|\.brief\.html)$/ or int(-M $_) > 7;
+  unlink if /(?:\.gz|\.brief\.html)$/ and int(-M $_) > 7;
 }
 &find(\&files_to_remove, $tinderboxdir);