=== modified file 'diffmake.awk'
--- diffmake.awk	2017-11-06 22:40:57 +0000
+++ diffmake.awk	2017-11-06 22:37:46 +0000
@@ -4,7 +4,7 @@
 
 {
 	r=$0;
-	gsub("[%:/?*]", "_", r)
+	gsub(/[%:/?*]/, "_", r)
 	print r":\n\tbzr diff -r "$0" >"r".new || test $$? = 1\n\tmv "r".new "r"\n\n"
 	d=d" "r
 }