[PATCH] opkg-utils: Do not use --ignore-fail-on-non-empty with rmdir

[Khem Raj <raj.khem@gmail.com>]

--ignore-fail-on-non-empty is coreutils specific, and you
are not always going to have coreutils on target systems
especially small ones. They will use the busybox applet which
does not support --ignore-fail-on-non-empty, use pipe and true
to ignore the errorcode from rmdir instead

Fixes upgrade errors on target e.g.

rmdir: unrecognized option '--ignore-fail-on-non-empty'
BusyBox v1.24.1 (2016-12-20 10:41:39 PST) multi-call binary.

Usage: rmdir [OPTIONS] DIRECTORY...
To remove package debris, try `opkg remove update-alternatives-opkg`.
To re-attempt the install, try `opkg install update-alternatives-opkg`.
Collected errors:
 * pkg_run_script: package "update-alternatives-opkg" postrm script returned status 1.
 * postrm_upgrade_old_pkg: postrm script for package "update-alternatives-opkg" failed

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 meta/recipes-devtools/opkg-utils/opkg-utils_git.bb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/recipes-devtools/opkg-utils/opkg-utils_git.bb b/meta/recipes-devtools/opkg-utils/opkg-utils_git.bb
index 19a852ec62..a881bbb5d4 100644
--- a/meta/recipes-devtools/opkg-utils/opkg-utils_git.bb
+++ b/meta/recipes-devtools/opkg-utils/opkg-utils_git.bb
@@ -45,7 +45,7 @@ RCONFLICTS_update-alternatives-opkg = "update-alternatives-cworth"
 
 pkg_postrm_update-alternatives-opkg() {
 	rm -rf $OPKG_OFFLINE_ROOT${nonarch_libdir}/opkg/alternatives
-	rmdir --ignore-fail-on-non-empty $OPKG_OFFLINE_ROOT${nonarch_libdir}/opkg
+	rmdir $OPKG_OFFLINE_ROOT${nonarch_libdir}/opkg || true
 }
 
 BBCLASSEXTEND = "native nativesdk"
-- 
2.11.0