Merge branch 'maint'

* maint:
  http.c: Fix problem with repeated calls of http_init
  Add missing reference to GIT_COMMITTER_DATE in git-commit-tree documentation
  Fix import-tars fix.
  Update .mailmap with "Michael"
  Do not barf on too long action description
  Catch empty pathnames in trees during fsck
  Don't allow empty pathnames in fast-import
  import-tars: be nice to wrong directory modes
  git-svn: Added 'find-rev' command
  git shortlog documentation: add long options and fix a typo

contrib/fast-import/import-tars.perl

@@ -52,6 +52,7 @@ foreach my $tar_file (@ARGV)
 			Z8 Z1 Z100 Z6
 			Z2 Z32 Z32 Z8 Z8 Z*', $_;
 		last unless $name;
+		next if $name =~ m{/\z};
 		$mode = oct $mode;
 		$size = oct $size;
 		$mtime = oct $mtime;