From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <paolo.bonzini@lu.unisi.ch>
Subject: [PATCH] git-archimport does not cope with empty summaries
Date: Tue, 27 Feb 2007 14:34:17 +0100
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I got this while importing bonzini@gnu.org--2004b/lightning--stable--1.2 
(archive available at 
http://www.inf.unisi.ch/phd/bonzini/webdav/bonzini@gnu.org--2004b via 
webdav).

The patch seems pretty obvious to me:

2007-02-27  Paolo Bonzini  <bonzini@gnu.org>

         * git-archimport (parselog): Cope with an empty summary.

--- /usr/bin/git-archimport     2007-01-09 21:15:39.000000000 +0100
+++ ./git-archimport    2007-02-27 14:28:33.000000000 +0100
@@ -780,7 +780,11 @@
      }

      # post-processing:
-    $ps->{summary} = join("\n",@{$ps->{summary}})."\n";
+    if (defined $ps->{summary}) {
+        $ps->{summary} = join("\n",@{$ps->{summary}})."\n";
+    } else {
+        $ps->{summary} = "empty summary\n";
+    }
      $ps->{message} = join("\n",@$log);

      # skip Arch control files, unescape pika-escaped files