file.c: home dir fall back
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54947 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
file.c: home dir fall back
user name is the current user name, on platforms where struct
pwd is not supported. a temporary measure against
[Bug #12226].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54947 b2dd03c8-39d4-4d8f-98ff-823fe69b080e