Ruby1.9: move setting Encoding.default_external after boot (#4050, #4796)
"ruby test/functional/repositories_git_controller_test.rb" fails on Japanese Windows and Mingw Ruby 1.9.3p0 because "Rails" is not defined.
Authored by: tmaruyama 2012-02-10
Parent: [r8832]
Child: [r8834]
