Before merge, core-updates-next HEAD was
ef21276053b980c9eca8df027408ae85bd6af3d8

(gnu packages admin): No change on core-updates next, package di added
on master.

(gnu packages base): The "previous" glibc package, used to provide
locales for the previously packaged glibc, was named for 2.21 instead of
2.22.

(gnu packages bioinformatics): Package diamond was on version 0.8.7
instead of master's 0.8.17.

Package vsearch was at version 2.0.0 instead of master's 2.0.1.

(gnu packages commencement): New private packages bison-boot0 and
flex-boot0 present on core-updates-next but not on master.

Conflict between 'kernel-headers-boot0' and 'linux-libre-headers-boot0'.
Picked the former since it was deliberately introduced relatively
recently.

(gnu packages cross-base): Conflict between xheaders and xlinux-headers.
Chose xheaders.

(gnu packages crypto): Annoying conflict due to alphabetization of
module imports.
A few conflicts regarding license prefixes.

(gnu packages databases): Version conflict for sqlite.

(gnu packages dav): Version conflict for vdirsyncer.

(gnu packages emacs): New packages not found on HEAD (why is this a
conflict?)

(gnu packages game-development): New packages not found on HEAD.

(gnu packages games): New packages not found on HEAD.

(gnu packages guile): New packages not found on HEAD.

(gnu packages haskell): Period-at-end-of-synopsis conflict.

(gnu packages imagemagick): Version conflict for imagemagick.

(gnu packages linux): Version conflicts in linux-libres.

(gnu packages music): Version conflict in beets.

(gnu packages password-utils): Conflict in authorship lines.

(gnu packages perl): Conflict in authorship lines.

(gnu packages python): Conflict in authorship lines.
Many conflicts due to iyzsong's input rearranging blitz. Took all the
new arrangements.
Conflict in wrap-python3. Took HEAD, which wraps more things.

(gnu packages scheme): Conflict related to introduction of
ghostscript-gs. Took master.

(gnu packages tex): Version conflicts in texlive packages. Took latest.

(gnu packages tls): Version conflict in gnutls.

(gnu packages version-control): Version conflict in git.

(gnu packages video): New configure flags for mpv from master.

(gnu packages xorg): Conflict in authorship lines.

gnu/local.mk: HEAD did not have patch 'mysql-fix-failing-test.patch'

(gnu tests): master exports more marionette-related variables.

guix/config.scm.in: Related to 0b0086e (config: Export the raw
installation directories.). Took master.

(guix packages): Related to 1929fdba (packages: <origin> no longer has
an 'imported-modules' field.). Took master.

(gnu tests base): Related to d2fa61bc (tests: Add Avahi and NSS-mDNS
test.). Took master.
Took master for all conflicts, since no work had been done on
core-updates-next.

(gnu tests install): Took master for all conflicts, since no work had
been done on core-updates-next.

doc/guix.texi: The mcron documentation was duplicated for some reason.
Git did not report this conflict. I discovered it when `make` failed.