hg: jdk9/dev: 8042810: hgforest: some shells run read in sub-shell and can't use fifo

[mike.duigou at oracle.com]

Changeset: b84fc0b1efc2
Author:    mduigou
Date:      2014-05-13 08:42 -0700
URL:       http://hg.openjdk.java.net/jdk9/dev/rev/b84fc0b1efc2

8042810: hgforest: some shells run read in sub-shell and can't use fifo
Reviewed-by: chegar, erikj

! common/bin/hgforest.sh