[BUG] notmuch-emacs highlights '>' quoted wrapped lines incorrectly

[David Edmondson]

On Thu, Jan 05 2017, Jani Nikula wrote:

> When the show view in notmuch-emacs highlights quoted text, any long,
> folded lines in quotes prefixed using '>' fail to be highlighted. Quotes
> prefixed using '> ' work fine. See below.

Maybe fiddle with `coolj-line-prefix-regexp', which is "^\\(>+ \\)*" by
default (note the space).

"^\\(>+ ?\\)*" gets it working, but I didn't think through all of the
consequences.

> BR,
> Jani.
>
>
> Quoting using '> ' works fine:
>> Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
>> veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate
>> velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt
>> mollit anim id est laborum.
>
> Quoting using '>' highlights any wrapped lines incorrectly:
>>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
>>veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate
>>velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt
>>mollit anim id est laborum.
>
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