Suppress useless error when starting a GI-managed DB

Starting an already running GI-managed DB with "srvctl start database" raises the error PRCC-1014 and some follow-ups. srvctl gives exit code 2 in this case. This error can safely be ignored.

oracle_db

@@ -709,7 +709,9 @@ def start_db (module,msg, oracle_home, db_name, db_unique_name, sid):
 			db_name = db_unique_name
 		command = '%s/bin/srvctl start database -d %s' % (oracle_home,db_name)
 		(rc, stdout, stderr) = module.run_command(command)
-		if rc != 0:
+                if rc == 2 and 'PRCC-1014' in stdout: #<-- DB is already running
+                        module.exit_json(msg='DB %s was already running' % db_name, changed=False)
+                elif rc != 0:
 			msg = 'Error - STDOUT: %s, STDERR: %s, COMMAND: %s' % (stdout, stderr, command)
 			module.fail_json(msg=msg, changed=False)
 		else: