hgrc.5: whether bcc is prompted for is up to the extension
There is no code in mail.py that forbids an extension to prompt for bcc.
Introduce check-code.py
check-code is a simple regex-based framework for checking our code and
tests for common style and portability errors. Currently, it knows a
fair amount about our Python and C style, and a little about common
shell script portability problems.
templates: do not add "ago" twice
After
1d75c683ada1, "ago" is added by the ago template filter.