busybox ps and procps-ng ps have different outputs. Force busybox ps usage
to fix this.
Also cleaned up the script using shellcheck.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
fix Makefile chmod (644)
replace MD5SUM with HASH
add PKG_MIRROR_HASH when PKG_SOURCE_PROTO:=git
(PKG_SOURCE_PROTO:=svn tarballs are not reproducible for now)
Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>