Man pages matching name change-po-charset in section 1:

change-po-charset.1.en	debian 10 / potool
change-po-charset.1.pl	debian 10 / potool
change-po-charset.1.en	debian 11 / potool
change-po-charset.1.pl	debian 11 / potool
change-po-charset.1.en	debian 12 / potool
change-po-charset.1.pl	debian 12 / potool