[ruby-cvs:78924] a1018b2c5f (master): fix typo

"NARUSE, Yui" <[email protected]> Wed, 25 Dec 2019 17:01:48 +0900 (JST)

Newsgroups	gmane.comp.lang.ruby.cvs
Message-ID	<[email protected]>

NARUSE, Yui	2019-12-25 17:01:26 +0900 (Wed, 25 Dec 2019)

  New Revision: a1018b2c5f

  https://github.com/ruby/ruby/commit/a1018b2c5f

  Log:
    fix typo

  Modified files:
    tool/format-release