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/manage.php

@@ -15,7 +15,7 @@ function manage_post(&$a) {
 		$r = q("select * from user where uid = %d limit 1",
 			intval($_SESSION['submanage'])
 		);
-		if(count($r)) {
+		if(dbm::is_result($r)) {
 			$uid = intval($r[0]['uid']);
 			$orig_record = $r[0];
 		}
@@ -56,7 +56,7 @@ function manage_post(&$a) {
 		);
 	}
 
-	if(! count($r))
+	if(! dbm::is_result($r))
 		return;
 
 	unset($_SESSION['authenticated']);