mncc_builtin: cosmetic: fix coding style in int_mncc_recv()

Change-Id: Iffef3c094a5d030663d312a379e846a8eb917942
diff --git a/src/libmsc/mncc_builtin.c b/src/libmsc/mncc_builtin.c
index da096c6..286fb56 100644
--- a/src/libmsc/mncc_builtin.c
+++ b/src/libmsc/mncc_builtin.c
@@ -303,7 +303,7 @@
 	DEBUGP(DMNCC, "(call %x) Received message %s\n", call->callref,
 		get_mncc_name(msg_type));
 
-	switch(msg_type) {
+	switch (msg_type) {
 	case MNCC_SETUP_IND:
 		rc = mncc_setup_ind(call, arg);
 		break;