etc.c: retry with allocated string buffer
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55262 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
etc.c: retry with allocated string buffer
buffer if static buffer size is not enough.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55262 b2dd03c8-39d4-4d8f-98ff-823fe69b080e