merge revision(s) 50449: [Backport #11123]
* ext/socket/ancdata.c (bsock_recvmsg_internal): GC guard [Bug #11123]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@50631 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 50449: [Backport #11123]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@50631 b2dd03c8-39d4-4d8f-98ff-823fe69b080e