gettext

b2038a3d - doc: Add po_filepos_t API

doc: Add po_filepos_t API * gettext-tools/doc/gettext.texi (po_filepos_t API): New subsection. Add po_message_filepos, po_message_remove_filepos, and po_message_add_filepos documentation. (libgettextpo): Add new subsection to the menu.