Nim: Fix typo

Fix a typo: Rename matchMultiLineCommendEnd() to matchMultiLineCommentEnd()

Change-Id: I2c1a5280c8abb05b9f76d0d8cce138d8a40ad014
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/nim/tools/nimlexer.h

@@ -95,7 +95,7 @@ private:
     Token readComment();
 
     bool matchMultiLineCommentStart();
-    bool matchMultiLineCommendEnd();
+    bool matchMultiLineCommentEnd();
     Token readMultiLineComment(bool moveForward);
 
     bool matchDocumentationStart();