[DOC] Update doc of NameError.new [ci skip]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63980 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

error.c

@@ -1446,9 +1446,10 @@ name_err_init_attr(VALUE exc, VALUE recv, VALUE method)
 /*
  * call-seq:
  *   NameError.new(msg [, name])  -> name_error
+ *   NameError.new(msg [, name], receiver:)  -> name_error
  *
  * Construct a new NameError exception. If given the <i>name</i>
- * parameter may subsequently be examined using the <code>NameError.name</code>
+ * parameter may subsequently be examined using the <code>NameError#name</code>
  * method.
  */