* hash.c (ruby_setenv): Fix TestEnv#test_aset failure on Solaris 9.
  When name contains '=', ruby_setenv raises Errno::EINVAL.
  That is the same behavior as Solaris 10.
  NULL check for malloc return value is also added.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46776 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-07-11

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46777 b2dd03c8-39d4-4d8f-98ff-823fe69b080e