rpcd: implement service_running() in init.d script

It allows checking if service is running.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

package/system/rpcd/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=rpcd
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/rpcd.git

package/system/rpcd/files/rpcd.init

@@ -19,3 +19,6 @@ reload_service() {
 	procd_send_signal rpcd
 }
 
+service_running() {
+	procd_running rpcd
+}