Index user defined headers

[David Bremner]

David Bremner <david at tethera.net> writes:

> David Bremner <david at tethera.net> writes:
>
>> This obsoletes [1]. Compared to the previous version the main change
>> is that it imposes the restriction that user defined prefixes may not
>> start with [a-z], and must consist of "unicode word characters". This
>> assumes a utf8 input encoding. People that don't like utf8 are welcome
>> to use ASCII :P
>>
>> [1]: id:20190302154133.25642-1-david at tethera.net
>> [2]: https://salsa.debian.org/bremner/notmuch/commits/wip/user-headers
>
> Last call for review or other feedback. I'll merge this in the next week
> if I don't hear anything.
>
> d

Next week turned into next month, but these this series is merged to
master now.

d