mail-filter/spamassassin: Fix sa_txrep test when no dbm

Upstream's fix is way more involved.  I'll leave that for 4.0.2, I
guess.
1c6fe5993c

Closes: https://bugs.gentoo.org/933406
Closes: https://github.com/gentoo/gentoo/pull/36986
Signed-off-by: Philippe Chaintreuil <gentoo_bugs_peep@parallaxshift.com>
Signed-off-by: Sam James <sam@gentoo.org>

mail-filter/spamassassin/files/4.0.1-tests-sa_txrep.t-no-dbm.patch

@@ -0,0 +1,16 @@
+https://bugs.gentoo.org/933406
+--- a/t/sa_txrep.t
++++ b/t/sa_txrep.t
+@@ -4,7 +4,11 @@ use lib '.'; use lib 't';
+ use SATest; sa_t_init("sa_txrep");
+ 
+ 
+-use Test::More tests => 8;
++use Test::More;
++
++my @dbmods = grep eval "require $_", ('DB_File', 'GDBM_File', 'SDBM_File');
++plan skip_all => "No db module is available" unless @dbmods;
++plan tests => 8;
+ 
+ # ---------------------------------------------------------------------------
+ 

mail-filter/spamassassin/spamassassin-4.0.1.ebuild

@@ -91,6 +91,7 @@ VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/spamassassin.apache.org.asc
 PATCHES=(
 	"${FILESDIR}/mention-geoip.cf-in-init.pre.patch"
 	"${FILESDIR}/4.0.0-tests-dnsbl_subtests.t_001_load-URIDNSBL.patch"
+	"${FILESDIR}/4.0.1-tests-sa_txrep.t-no-dbm.patch"
 )
 
 # There are a few renames and use-dependent ones in src_install as well.