update libexec for pkgx^2 #320

Job	Run time
unit-tests	11s
unavailable	8s
local-edit-tests	7s
toolchain.com (linux)	12s
fixups.org (linux)	12s
pyapp.com/poetry (linux)	9s
stark.com/foo@1.2.3 (linux)	11s
stark.com/foo (linux)	12s
fix-machos.com (linux)	9s
pyapp.com/pip (linux)	7s
pyapp.com/poetry (mac)	8s
pyapp.com/pip (mac)	9s
git-clone.com (linux)	11s
stark.com/foo (mac)	6s
pc-cmake.com (mac)	10s
stark.com/foo@1.2.3 (mac)	7s
git-clone.com (mac)	8s
version-transformer.com (mac)	9s
fixups.org (mac)	9s
toolchain.com (mac)	6s
pc-cmake.com (linux)	8s
fix-machos.com (mac)	5s
version-transformer.com (linux)	11s
	3m 25s

Provide feedback