Merge branch 'maint'

* maint:
  Start 1.6.0.4 cycle
  add instructions on how to send patches to the mailing list with Gmail
  Documentation/gitattributes: Add subsection header for each attribute
  git send-email: avoid leaking directory file descriptors.
  send-pack: do not send out single-level refs such as refs/stash
  fix overlapping memcpy in normalize_absolute_path
  pack-objects: avoid reading uninitalized data
  correct cache_entry allocation

Conflicts:
	RelNotes

git-send-email.perl

@@ -374,10 +374,9 @@ for my $f (@ARGV) {
 
 		push @files, grep { -f $_ } map { +$f . "/" . $_ }
 				sort readdir(DH);
-
+		closedir(DH);
 	} elsif (-f $f or -p $f) {
 		push @files, $f;
-
 	} else {
 		print STDERR "Skipping $f - not found.\n";
 	}