Adding font.c to gettext translation list

unforgettableid · web-flow · commit c8adce8d8b50 · 2017-08-07T15:36:57.000-04:00
This allows "make check" to succeed.  In turn, this allows dpkg-buildpackage to succeed,
which allows me to build a Debian jpilot package for myself.
diff --git a/po/POTFILES.in b/po/POTFILES.in
@@ -9,6 +9,7 @@ datebook.c
 datebook_gui.c
 dialer.c
 export_gui.c
+font.c
 import_gui.c
 install_gui.c
 install_user.c
