Typo Fix in recordings.php (#6504)

app/recordings/recordings.php

@@ -579,7 +579,7 @@
 			// If the range starts with an '-' we start from the beginning
 			// If not, we forward the file pointer
 			// And make sure to get the end byte if spesified
-			if ($range0 == '-') {
+			if ($range == '-') {
 				// The n-number of the last bytes is requested
 				$c_start = $size - substr($range, 1);
 			}