* string.c (rb_str_sub): Fix a special match variable name.

[ci skip]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54915 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Thu May  5 14:41:05 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
+
+	* string.c (rb_str_sub): Fix a special match variable name.
+	  [ci skip]
+
 Thu May  5 12:22:17 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* vm_eval.c (rb_eval_cmd, rb_catch_obj): use TH_JUMP_TAG with the

string.c

@@ -4647,7 +4647,7 @@ rb_str_sub_bang(int argc, VALUE *argv, VALUE str)
  *  <code>"\\k<n>"</code>, where <i>n</i> is a group name. If it is a
  *  double-quoted string, both back-references must be preceded by an
  *  additional backslash. However, within +replacement+ the special match
- *  variables, such as <code>&$</code>, will not refer to the current match.
+ *  variables, such as <code>$&</code>, will not refer to the current match.
  *  If +replacement+ is a String that looks like a pattern's capture group but
  *  is actually not a pattern capture group e.g. <code>"\\'"</code>, then it
  *  will have to be preceded by two backslashes like so <code>"\\\\'"</code>.