* tool/fetch-bundled_gems.rb: get rid of tool/git-refresh which
requries Bourne shell.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60431 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
`test-bundled-gems` invoke test suite of bundled gems with
build environment.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60247 b2dd03c8-39d4-4d8f-98ff-823fe69b080e