spawn (and thus popen_rd) die on failure

Most spawn and popen_rd callers die on failure to spawn,
anyways, and some are missing checks entirely.  This saves
us a bunch of verbose error-checking code in callers.

This also makes popen_rd more consistent, since it already
dies on pipe creation failures.

1 files changed, 1 insertions, 3 deletions

diff --git a/lib/PublicInbox/WwwListing.pm b/lib/PublicInbox/WwwListing.pm
index a52dba11..8d610037 100644
--- a/lib/PublicInbox/WwwListing.pm
+++ b/lib/PublicInbox/WwwListing.pm
@@ -136,9 +136,7 @@ sub fingerprint ($) {
         my ($git) = @_;
         # TODO: convert to qspawn for fairness when there's
         # thousands of repos
-        my ($fh, $pid) = $git->popen('show-ref') or
-                die "popen($git->{git_dir} show-ref) failed: $!";
-
+        my ($fh, $pid) = $git->popen('show-ref');
         my $dig = Digest::SHA->new(1);
         while (read($fh, my $buf, 65536)) {
                 $dig->add($buf);