merge revision(s) 37322: [Backport #7143]
* win32/win32.c (has_redirection): should use shell (cmd.exe) when the commandline containts '&'. reported by Roger Pack at [ruby-core:47912] [Bug #7143], and patched by Heesob Park at [ruby-core:47931].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@37549 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 37322: [Backport #7143]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@37549 b2dd03c8-39d4-4d8f-98ff-823fe69b080e