Fix an issue with setting file extensions. Make sure to return a blank array when the file does not actually contain any lines, but the file does exist.

Author: Alexia

classes/scanner.php

@@ -46,7 +46,7 @@ public function __construct($projectPath, $extensions = null) {
 		}
 		$this->projectPath = $projectPath;
 
-		if (!is_null($extensions)) {
+		if (is_array($extensions)) {
 			$this->setFileExtensions($extensions);
 		}
 
@@ -98,9 +98,9 @@ public function scanNextFile() {
 		}
 		$file = $_file['value'];
 
-		$lines = file($file);
+		$lines = file($file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
 		if ($lines === false) {
-			return false;
+			$lines = [];
 		}
 		return $lines;
 	}

mar.php

@@ -185,4 +185,4 @@ static public function getRealPath($path) {
 	}
 }
 $mar = new \mar\main();
-?>
+?>