[arch-general] pacman update error

[Francis Gerund]

Hi.

On Arch 64-bit, up to date (as of about 12 hours ago), I just did:

sudo pacmatic -Syyuv


Here's the result:

Root      : /
Conf File : /etc/pacman.conf
DB Path   : /var/lib/pacman/
Cache Dirs: /var/cache/pacman/pkg/
Hook Dirs : /usr/share/libalpm/hooks/  /etc/pacman.d/hooks/
Lock File : /var/lib/pacman/db.lck
Log File  : /var/log/pacman.log
GPG Dir   : /etc/pacman.d/gnupg/
Targets   : None
:: Synchronizing package databases...
 core                                 120.8 KiB   417K/s 00:00
[##################################] 100%
 extra                               1750.7 KiB  2.88M/s 00:01
[##################################] 100%
 community                              3.4 MiB  3.59M/s 00:01
[##################################] 100%
:: Starting full system upgrade...
resolving dependencies...
looking for conflicting packages...

Packages (5) libutil-linux-2.28-1  mesa-11.2.1-1  mesa-libgl-11.2.1-1
pacman-mirrorlist-20160418-1
             util-linux-2.28-1

Total Installed Size:  46.04 MiB
Net Upgrade Size:       0.44 MiB

:: Proceed with installation? [Y/n]
(5/5) checking keys in keyring
[##################################] 100%
(5/5) checking package integrity
[##################################] 100%
(5/5) loading package files
[##################################] 100%
(5/5) checking for file conflicts
[##################################] 100%
error: failed to commit transaction (conflicting files)
util-linux: /usr/share/bash-completion/completions/mount exists in
filesystem
util-linux: /usr/share/bash-completion/completions/umount exists in
filesystem
Errors occurred, no packages were upgraded.

Tried pacman -Syyuv.  Same result.

Rebooted.  Same result.

Did sudo reflector --verbose --country 'United States' -l 200 -p https
--sort rate --save /etc/pacman.d/mirrorlist,  then pacman -Syyuv.  Same
result.

So, this seems to be the relevant section:

error: failed to commit transaction (conflicting files)
util-linux: /usr/share/bash-completion/completions/mount exists in
filesystem
util-linux: /usr/share/bash-completion/completions/umount exists in
filesystem
Errors occurred, no packages were upgraded.

Any idea what the problem might be?