add lib/xstrtol.h to po/POTFILES.in

[Paul Eggert]

I installed this to reflect the change I made a few minutes ago
to xstrtol.h, which wraps its English-language strings inside
calls to gettext.

2006-10-19  Paul Eggert  <address@hidden>

        * po/POTFILES.in: Add lib/xstrtol.h.

--- po/POTFILES.in      9 Aug 2006 08:12:27 -0000       1.25
+++ po/POTFILES.in      19 Oct 2006 07:52:12 -0000
@@ -22,9 +22,10 @@ lib/unicodeio.c
 lib/userspec.c
 lib/version-etc.c
 lib/xalloc-die.c
-lib/xmemxfrm.c
 lib/xfts.c
 lib/xmemcoll.c
+lib/xmemxfrm.c
+lib/xstrtol.h
 
 # Package source files