t/solver_git: avoid uninitialized warnings in hostname generation

Outside of tests, this is only relevant for non-PSGI use, which
may happen someday...

Fixes: cb1c874520153f5c ("inbox: use PublicInbox::Git::host_prefix_url for base_url")

1 files changed, 2 insertions, 1 deletions

diff --git a/t/solver_git.t b/t/solver_git.t
index 77fa1e09..98317fae 100644
--- a/t/solver_git.t
+++ b/t/solver_git.t
@@ -42,7 +42,8 @@ $ibx->{-repo_objs} = [ $git ];
 my $res;
 my $solver = PublicInbox::SolverGit->new($ibx, sub { $res = $_[0] });
 open my $log, '+>>', "$inboxdir/solve.log" or die "open: $!";
-my $psgi_env = { 'psgi.errors' => *STDERR, 'psgi.url_scheme' => 'http' };
+my $psgi_env = { 'psgi.errors' => *STDERR, 'psgi.url_scheme' => 'http',
+                'HTTP_HOST' => 'example.com' };
 $solver->solve($psgi_env, $log, '69df7d5', {});
 ok($res, 'solved a blob!');
 my $wt_git = $res->[0];