cosmetic: osmux: Fix formatting of if-else brackets

Change-Id: I748d41cd110841ef121f70560e70c07de56aa9da
diff --git a/src/libosmo-mgcp/mgcp_osmux.c b/src/libosmo-mgcp/mgcp_osmux.c
index 5ba48e8..5647348 100644
--- a/src/libosmo-mgcp/mgcp_osmux.c
+++ b/src/libosmo-mgcp/mgcp_osmux.c
@@ -598,8 +598,9 @@
 				 "no available Osmux CID to allocate!\n");
 			return -1;
 		}
-	} else
+	} else {
 		osmux_cid_pool_get(osmux_cid);
+	}
 
 	conn->osmux.cid = (uint8_t) osmux_cid;
 	conn->osmux.cid_allocated = true;