Respect $g_show_realname setting in config report's filter userlist

The filter's original implementation displayed "Realname (username)" in
the user selection list. We now only retrieve the user id from the db,
and call user_get_name() to get either the realname or the username as
appropriate instead.

Issue #14559

adm_config_report.php

@@ -115,22 +115,25 @@ function print_option_list_from_array( $p_array, $p_filter_value ) {
 
 	# Apply filters
 	$t_config_table  = db_get_table( 'mantis_config_table' );
-	$t_user_table    = db_get_table( 'mantis_user_table' );
 	$t_project_table = db_get_table( 'mantis_project_table' );
 
-		# Get users in db with specific configs
-		$query = "SELECT DISTINCT user_id, ut.realname as username, ut.username as idrh
-			FROM $t_config_table as ct
-			JOIN $t_user_table as ut ON ut.id = ct.user_id
-			ORDER BY username";
-		$t_result = db_query_bound( $query );
+		# Get users in db having specific configs
+		$query = "SELECT DISTINCT user_id
+			FROM $t_config_table
+			WHERE user_id <> " . db_param() ;
+		$t_result = db_query_bound( $query, array( ALL_USERS ) );
 		$t_users_list = array();
-		$t_users_list[META_FILTER_NONE] = '[' . lang_get( 'any' ) . ']';
-		$t_users_list[ALL_USERS] = lang_get( 'all_users' );
 		while ( $row = db_fetch_array( $t_result ) ) {
-			extract( $row, EXTR_PREFIX_ALL, 'v' );
-			$t_users_list[$v_user_id] = "$v_username ($v_idrh)";
+			$t_user_id = $row['user_id'];
+			$t_users_list[$t_user_id] = user_get_name( $t_user_id );
 		}
+		asort( $t_users_list );
+		# Prepend '[any]' and 'All Users' to the list
+		$t_users_list = array(
+				META_FILTER_NONE => '[' . lang_get( 'any' ) . ']',
+				ALL_USERS        => lang_get( 'all_users' ),
+			)
+			+ $t_users_list;
 
 		# Get projects in db with specific configs
 		$query = "SELECT DISTINCT project_id, pt.name as project_name