sysctl: do not make unknown keys fatal

If unknown keys are found, currently sysctl would add all of its valid
settings, but then leave itself marked as "stopped".  Since this is not
really what we want, make unknown keys a non-fatal error.

Reported-by: Christian Ruppert <idl0r@gentoo.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

init.d/sysctl.Linux.in

@@ -10,16 +10,25 @@ depend()
 
 start()
 {
-	local conf= retval=0
+	local conf= retval=0 err errs
+
 	ebegin "Configuring kernel parameters"
 	eindent
+
 	for conf in /etc/sysctl.d/*.conf /etc/sysctl.conf; do
 		if [ -r "$conf" ]; then
 			vebegin "applying $conf"
-			sysctl -p "$conf" >/dev/null
+			if ! err=$(sysctl -q -p "$conf" 2>&1) ; then
+				errs="${errs} ${err}"
+				sysctl -q -e -p "${conf}"
+			fi
 			veend $? || retval=1
 		fi
 	done
+
 	eoutdent
-	eend $retval "Some errors were encountered"
+	if [ ${retval} -eq 0 ] && [ -n "${errs}" ] ; then
+		ewarn "Unknown keys:${errs}"
+	fi
+	eend $retval "Some errors were encountered: ${errs}"
 }