hgview #4337 [gtk] diff windows too small by default [rejected]

When using in gtk mode, the diff windows original size is way too small (about 6 chars wide on my machine), and most of the space is taken up by the diffstat display. I think the diff itself could use about 75% of the screen width, leaving the 25 remaining % for the diffstat display.

The Qt version does not has a correct behaviour for this.