Man pages matching name pmsetprogname in section 3:

pmSetProgname.3.en	debian 10 / libpcp3-dev
pmsetprogname.3.en	debian 10 / libpcp3-dev
pmSetProgname.3.en	debian 11 / libpcp3-dev
pmSetProgname.3.en	debian 12 / libpcp3-dev