hg: code-tools/webrev: 7901115: webrev -N -r generates broken patch files

[jonathan.gibbons at oracle.com]

Changeset: 935f1eaa4691
Author:    brutisso
Date:      2015-05-05 16:57 -0700
URL:       http://hg.openjdk.java.net/code-tools/webrev/rev/935f1eaa4691

7901115: webrev -N -r generates broken patch files
(backout http://hg.openjdk.java.net/code-tools/webrev/rev/09eb35524f9a)

! webrev.ksh