[PATCH 3 of 6] histedit: fix most check-code violations

[Augie Fackler]

On Thu, Jun 28, 2012 at 10:29 AM, Kevin Bullock
<kbullock+mercurial at ringworld.org> wrote:
> On Jun 28, 2012, at 8:59 AM, Augie Fackler wrote:
>
> Looks like this should be more specific? Or does it not matter since we just abort anyway? There's an awful lot of `except Exception:` happening in this code (but I'm sure that can be cleaned up after it's included, if need be).

Yeah, it should be more specific, but I wanted to get this in rather
than keep gilding the lily in an external repo.

>
> pacem in terris / мир / शान्ति / ‎‫سَلاَم‬ / 平和
> Kevin R. Bullock
>