[Ruby 1.9-Bug#4024][Open] IO#readlines(0) never return

Bug #4024: IO#readlines(0) never return

$B5/I<<T(B: Tomoyuki C.
$B%9%F!<%?%9(B: Open, $BM%@john(B: Normal
$B%+%F%4%j(B: core
ruby -v: ruby 1.9.3dev (2010-11-04 trunk 29690) [x86_64-darwin10.4.0]

1.9.2 $B$*$h$S(B trunk $B$G(B IO#readlines $B$N0z?t$K(B 0

$B%A%1%C%H(B #4024 $B$,99?7$5$l$^$7$?!#(B (by Nobuyoshi N.)

$B%9%F!<%?%9(B Open$B$+$i(BClosed$B$KJQ99(B
$B?JD=(B % 0$B$+$i(B100$B$KJQ99(B

This issue was solved with changeset r29694.
Tomoyuki, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.