[Bug #2552] HOME $BJQ?t$r6u$K$7$F5/F0$9$k$H!":FEY6u$K$G$-$J$/$J$k(B

e$B%A%1%C%He(B #2552 e$B$,99?7$5$l$^$7$?!#e(B (by Usaku NAKAMURA)

e$B$J$k$[$I!"8=>]$r8m2r$7$F$$$^$7$?!#e(B
e$B$H$$$&$o$1$GBP1~$7$F$_$^$7$?!#1x$$$1$I!#e(B

http://redmine.ruby-lang.org/issues/show/2552