Fix whitespace issues

We don't usually put space before in-place increment or decrement. Let's
make code look similar to other Osmocom projects.

Change-Id: I5962431ad16c97e412939dc1b8949f6361a5c26e
diff --git a/src/libmsc/sms_queue.c b/src/libmsc/sms_queue.c
index 39a81f6..7d59787 100644
--- a/src/libmsc/sms_queue.c
+++ b/src/libmsc/sms_queue.c
@@ -216,7 +216,7 @@
 		sms = db_sms_get_next_unsent_rr_msisdn(net, last_msisdn, 9);
 		if (!sms) {
 			last_msisdn[0] = '\0';
-			wrapped ++;
+			wrapped++;
 			continue;
 		}