Fix: #112 Call to function unset() contains undefined variable $line.

Author: JBlond

composer.json

@@ -36,7 +36,8 @@
         "squizlabs/php_codesniffer": "*",
         "phpmd/phpmd": "2.*",
         "jblond/php-cli": "^1.0",
-        "digilive/git-changelog": "^1"
+        "digilive/git-changelog": "^1",
+        "vimeo/psalm": "^4.23"
     },
     "suggest": {
         "jblond/php-cli": "^1.0"

lib/jblond/Diff/SequenceMatcher.php

@@ -369,7 +369,6 @@ static function (&$line) {
                             $line = trim($line);
                         }
                     );
-                    unset($line);
                 }
 
                 if (