[ruby-cvs:66263] nobu:r59086 (trunk): make-snapshot: suppress output from 7z [ci skip]

[nobu at ruby-lang.org]

nobu	2017-06-15 11:33:57 +0900 (Thu, 15 Jun 2017)

  New Revision: 59086

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=59086

  Log:
    make-snapshot: suppress output from 7z [ci skip]

  Modified files:
    trunk/tool/make-snapshot