dev-python/lit: Bump -9999 to EAPI 7

Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-python/lit/lit-9999.ebuild

@@ -1,7 +1,7 @@
 # Copyright 1999-2019 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=6
+EAPI=7
 
 PYTHON_COMPAT=( python2_7 python3_{5,6,7} )
 inherit distutils-r1 git-r3 multiprocessing
@@ -35,6 +35,7 @@ src_unpack() {
 }
 
 python_test() {
+	local -x LIT_PRESERVES_TMP=1
 	./lit.py -j "${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}" \
 		-vv tests || die
 }