Simplify building patch lists for rpm specs

rpm/SPECS/Makefile

diff --git a/rpm/SPECS/Makefile b/rpm/SPECS/Makefile
index 17d1fb6..9f2baa0 100644
--- a/rpm/SPECS/Makefile
+++ b/rpm/SPECS/Makefile
@@ -152,10 +152,7 @@
 	patch_files=`find $(CONTRIB)/src/nginx$(BASE_SUFFIX)/ \
 		-type f -name '*.patch' -printf "%f\n" | sort`; \
 	patches=`for i in $$patch_files; do echo $$i; done | \
-		nl -v0 -w 1 -s": " | \
-		sed -n  -e ':a' \
-			-e 's/^/Patch/' -e '1h;1!H;' -e '$$!{n;ba}' \
-			-e 'x' -e "s/$$/$$CR/; s/\\n/$$CR/g" -e 'p' `; \
+			awk '{ printf "Patch%03d: %s\n", NR, $$0 }'`; \
 	for patch in $$patch_files; do \
 		cp -v $(CONTRIB)/src/nginx$(BASE_SUFFIX)/$$patch $(SRCPATH) ; \
 	done; \