mtools: version bump to 4.0.23

Upstream has integrated our patches, and fix a timing error in the lock
logic.  Upgrade to get them all.

Also, downgrade mtools ebuild to EAPI 5.

TEST=precq passes

Change-Id: I84d2d5362e473b72ffc3c762eadeed97922d172f
Commit-Ready: Mike Frysinger <>
Tested-by: Mike Nichols <>
Tested-by: Mike Frysinger <>
Reviewed-by: Mike Nichols <>
(cherry picked from commit 205282ac3e551fcebd157d9b4950ae07ceae7fa4)
Tested-by: Don Garrett <>
Reviewed-by: Mike Frysinger <>
Trybot-Ready: Don Garrett <>
Commit-Queue: Don Garrett <>
6 files changed