Pacify ./configure --enable-gcc-warnings.

* src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
`char const *' instead of `char *'.
* src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
local variable `sep'.

po/.cvsignore

@@ -12,6 +12,7 @@ bison.pot
 boldquot.sed
 en@boldquot.header
 en@quot.header
+insert-header.sed
 insert-header.sin
 quot.sed
 remove-potcdate.sed