PGASetCharacterInitType(2) on Linux

The text e7430f47d4bd, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it. The page shows this text now.

sets a flag to specify whether the character strings will be exclusively lowercase, exclusively uppercase, or a mixure of both cases.