[PATCH] build-many-glibcs: don't crash if email is not configured

[Joseph Myers]

On Thu, 16 Feb 2017, Zack Weinberg wrote:

> Not so; bot_build_mail is called at the end of each "action" in a cycle:
> 
>         for a in actions:
>             if must_build[a]:
>                 build_time = datetime.datetime.utcnow()
>                 print('Rebuilding %s at %s.' % (a, str(build_time)))
>                 self.bot_run_self([], a)
>                 self.load_build_state_json()
>                 self.bot_build_mail(a, build_time)
>         print('Bot cycle done at %s.' % str(datetime.datetime.utcnow()))
> 
> And it takes the "action" as an argument, so making it send mail only
> once for the entire process would be a fair bit of surgery.  Given
> that, do you still want self.email_warning removed?  It seems to me it
> would be annoying to get the warning more than once per invocation.

Thanks for the correction.  The patch is OK as-is.

-- 
Joseph S. Myers
joseph@codesourcery.com