[ruby-cvs:68470] nobu:r61289 (trunk): string.c: suppress warning

[nobu at ruby-lang.org]

nobu	2017-12-16 09:03:51 +0900 (Sat, 16 Dec 2017)

  New Revision: 61289

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61289

  Log:
    string.c: suppress warning
    
    * string.c (str_undump): suppress maybe-uninitialized warning by
      gcc 7 and later.

  Modified files:
    trunk/string.c