hg: code-tools/jcheck: 7902293: jcheck extension broken after util.Abort removed from hg in March 2018; ...

[jonathan.gibbons at oracle.com]

Changeset: 480a8cdaefae
Author:    tbell
Date:      2018-09-21 09:14 -0700
URL:       http://hg.openjdk.java.net/code-tools/jcheck/rev/480a8cdaefae

7902293: jcheck extension broken after util.Abort removed from hg in March 2018
7902317: jcheck extension broken after date-related utils moved to utils/dateutil
Reviewed-by: ihse, jjg

! jcheck.py