Fix warning

Fix warning about values not being covered in switch statement

Change-Id: I9c2fed95b5fb9ee2e2ee344a8ca4524e26bcaf8a
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

src/plugins/git/giteditor.cpp

@@ -231,6 +231,8 @@ void GitEditor::setPlainTextDataFiltered(const QByteArray &a)
         }
         break;
     }
+    default:
+        break;
     }
 
     setPlainTextData(array);