[BusyBox] 1.00-pre10 grep -e abc -e xyz problem

[Shuhao Chang]

~ # cat text
abc
ijk
xyz
~ # cat text | grep -e abc -e xyz
~ #

Expected value:
abc
xyz
But when I use BusyBox v1.00-pre10 grep, it gets nothing.
Busybox CVS grep.c 1.79 doesn't have this problem.

-- shuhao