procd: add a PROCD_DEBUG variable that will dump the ubus calls from init scripts to stderr

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 39983

package/system/procd/files/procd.sh

@@ -50,6 +50,7 @@ _procd_wrapper() {
 _procd_ubus_call() {
 	local cmd="$1"
 
+	[ -n "$PROCD_DEBUG" ] && json_dump >&2
 	ubus call service "$cmd" "$(json_dump)"
 	json_cleanup
 }