t/*.t: use identifiable tempdir names

This should make identifiying leftover directories
due to SIGKILL-ed tests easier.

1 files changed, 1 insertions, 1 deletions

diff --git a/t/config.t b/t/config.t
index 88ed62a4..48df0871 100644
--- a/t/config.t
+++ b/t/config.t
@@ -5,7 +5,7 @@ use warnings;
 use Test::More;
 use PublicInbox::Config;
 use File::Temp qw/tempdir/;
-my $tmpdir = tempdir(CLEANUP => 1);
+my $tmpdir = tempdir('pi-config-XXXXXX', TMPDIR => 1, CLEANUP => 1);
 
 {
         is(system(qw(git init -q --bare), $tmpdir), 0, "git init successful");