cdr.c: Fix setting dnid, callingsubaddr, and calledsubaddr

The string comparisons for setting these CDR variables was inverted.  We
were repeatedly setting these CDR variables only if the channel snapshots
had the same value.

ASTERISK-27335

Change-Id: I9482073524411e7ea6c03805b16de200cb1669ea

main/cdr.c

@@ -1333,13 +1333,13 @@ static void cdr_object_update_cid(struct cdr_object_snapshot *old_snapshot, stru
 		set_variable(&old_snapshot->variables, "calledsubaddr", new_snapshot->dialed_subaddr);
 		return;
 	}
-	if (!strcmp(old_snapshot->snapshot->caller_dnid, new_snapshot->caller_dnid)) {
+	if (strcmp(old_snapshot->snapshot->caller_dnid, new_snapshot->caller_dnid)) {
 		set_variable(&old_snapshot->variables, "dnid", new_snapshot->caller_dnid);
 	}
-	if (!strcmp(old_snapshot->snapshot->caller_subaddr, new_snapshot->caller_subaddr)) {
+	if (strcmp(old_snapshot->snapshot->caller_subaddr, new_snapshot->caller_subaddr)) {
 		set_variable(&old_snapshot->variables, "callingsubaddr", new_snapshot->caller_subaddr);
 	}
-	if (!strcmp(old_snapshot->snapshot->dialed_subaddr, new_snapshot->dialed_subaddr)) {
+	if (strcmp(old_snapshot->snapshot->dialed_subaddr, new_snapshot->dialed_subaddr)) {
 		set_variable(&old_snapshot->variables, "calledsubaddr", new_snapshot->dialed_subaddr);
 	}
 }