Without this `mail-user-agent' cannot be set to `mu4e-user-agent'
through customize, as the custom type expects a function. Not sure
whether this function is actually ever used; if it is then returning
the symbol is probably the correct thing to do, as other such
functions suggest.
The first sentence should summarize the variable's or function's
purpose and it should fit on the first line. Change existing
doc-string by:
* Move first sentence onto first line even if that makes it _a bit_
long.
* Move additional notes out of first sentence and add them later,
possibly as complete sentences.
* If I am uncertain whether doing the above would alter the meaning,
_don't_ do it.
* If fitting the initial sentence on the first line would require a
complete rewrite of the doc-string _don't_ do so unless it is very
easy to do.
* Remove indentation from second and later lines if it is there to
align them with the first in the source code, instead of in
`describe-*' output.
* Make "pullet point" lists a bit more consistent.
Obviously this does not fix all problems but it's a start.
- M-x mu4e-update-mail-and-index (C-S-U in main/headers/view/compose, with
prefix arg, run in background
- M-x mu4e-update-index to only update the index
- document / add to FAQ
