git diff, shows the same line as both deleted and added

I accidently worked on the master where I had to open up a new branch.

I reverted it to its original form almost completely. At one class I get the following diff that I can not make sense out of.

index 4a9abb8..7c55879 100755
--- a/includes/site.inc.php
+++ b/includes/site.inc.php
@@ -142,11 +142,11 @@ class site{

        public $tplEngine = 'smarty';

-
+       
     private $_productsByType = array();
     private $logger;
-    protected $locale = 'tr_TR';
-
+    protected $locale = 'tr_TR';  
+    

It says that I have deleted and added the same thing, in principle there is no difference with the original index and I don't want this file to be seen as modified.

What should I do ? Thx.

Check spaces. The replaced "empty" looking lines have spaces in them. You may also have accidentally replaced tabs with spaces or vice versa.