hg: code-tools/defpath: 7902292: defpath extension broken after util.Abort removed from hg in March 2018

[jonathan.gibbons at oracle.com]

Changeset: ab657b1ebf54
Author:    tbell
Date:      2018-09-20 12:11 -0700
URL:       http://hg.openjdk.java.net/code-tools/defpath/rev/ab657b1ebf54

7902292: defpath extension broken after util.Abort removed from hg in March 2018
Reviewed-by: ihse, jjg

! defpath.py