gettext

267f6167 - Drop portability to AIX 4.

Drop portability to AIX 4. * gettext-runtime/intl/loadmsgcat.c: Assume PRI_MACROS_BROKEN is not set. * gettext-tools/tests/format-c-3-prg.c: Likewise. * gettext-tools/tests/format-c-4-prg.c: Likewise.