My node tried to rebuild one of them because it was lagging (I noticed
because mrkd was not installed).
Turns out a few were lagging, and lightning-dev-sendcustommsg.7 was totally
empty!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
mrkd started enforcing the `name -- short description` style of top-level
headings somewhere, and was thus failing to build the man-pages. I swapped
the title and with the existing short description to make it work
again. `mrkd` will automatically infer the section from the filename so no
need to put it in the title as well.
In addition I removed the "last updated" lines at the bottom since they are
out of date at best, and misleading at the worst. If we want to keep them, I'd
suggest generating them from the commit that last touched them.