move wrapper scripts to /usr/local/bin

overlay/usr/local/bin/rpmbuild

@@ -1,9 +1,9 @@
-#!/usr/bin/sh
+#!/usr/bin/env sh
 set -eo pipefail
 
 DIR=$(pwd)
 
-mkdir ./dist
+mkdir -p ./dist
 echo '%_topdir '"${DIR%/}"'/dist' > /root/.rpmmacros
 rpmdev-setuptree
 rsync -q -av "${DIR%/}/patch/" "${DIR%/}/dist/SOURCES"

overlay/usr/local/bin/rpmbuild-official

@@ -1,4 +1,4 @@
-#!/usr/bin/sh
+#!/usr/bin/env sh
 set -eo pipefail
 
 exec /usr/bin/rpmbuild "$@"