More usage of dbm::is_result($r) instead of count($r):

- count() returns very different results and never a boolean (not even false on
  error condition).
- therefore you should NOT use it in boolean expressions. This still *can* be
  done in PHP because of its lazyness. But it is discouraged if it comes to
  more clean code.

Signed-off-by: Roland Häder <roland@mxchange.org>

mod/notifications.php

@@ -27,7 +27,7 @@ function notifications_post(&$a) {
 			intval(local_user())
 		);
 
-		if(count($r)) {
+		if(dbm::is_result($r)) {
 			$intro_id = $r[0]['id'];
 			$contact_id = $r[0]['contact-id'];
 		}