rockspecs: remove debug line.

* build-aux/mkrockspecs.lua: Remove left-over debug line.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>
maint: add gitlog-to-changelog.

Hand maintaining a ChangeLog is tedious.
* build-aux/gitlog-to-changelog: New file.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>
maint: release process streamlining.

* GNUmakefile (check-in-release): Don't switch back to master yet.
(release): Do it at the end!

Signed-off-by: Gary V. Vaughan <gary@gnu.org>