inc: better safe than sorry

src/etc/inc/interfaces.lib.inc

@@ -160,12 +160,14 @@ function legacy_interface_stats($ifs)
 		return $stats;
 	}
 
-	/* first one is header */
-	array_shift($out);
-
-	foreach ($out as $line) {
-		$stat = explode(':', $line);
-		$stats[trim($stat[0])] = trim($stat[1]);
+	if (count($count)) {
+		/* first one is header */
+		array_shift($out);
+
+		foreach ($out as $line) {
+			$stat = explode(':', $line);
+			$stats[trim($stat[0])] = trim($stat[1]);
+		}
 	}
 
 	return $stats;