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/tests/sms_queue/sms_queue_test.c b/tests/sms_queue/sms_queue_test.c
index 0ff636e..641cc5f 100644
--- a/tests/sms_queue/sms_queue_test.c
+++ b/tests/sms_queue/sms_queue_test.c
@@ -107,7 +107,7 @@
 		fake_sms.receiver = fake_sms_db[i].vsub_attached? &arbitrary_vsub : NULL;
 		osmo_strlcpy(fake_sms.text, fake_sms_db[i].msisdn, sizeof(fake_sms.text));
 		if (fake_sms_db[i].vsub_attached)
-			fake_sms_db[i].nr_of_sms --;
+			fake_sms_db[i].nr_of_sms--;
 		return &fake_sms;
 	}
 	return NULL;