PGASetCharacterInitType(3) on Linux
The text 3fe04733969e, as Debian 1.1 (Buzz) shipped it.
sets a flag to specify whether the character strings will be exclusively lowercase, exclusively uppercase, or a mixure of both cases. Legal flags are PGA_CINIT_UPPER, PGA_CINIT_LOWER, and PGA_CINIT_MIXED. Default is PGA_CINIT_LOWER.