Fix another passel of include-file breakage. Kris Jurka, Tom Lane

src/backend/storage/buffer/buf_table.c

src/backend/storage/lmgr/lmgr.c

src/backend/utils/adt/inet_net_ntop.c

src/backend/utils/adt/inet_net_pton.c

src/backend/utils/adt/oracle_compat.c

src/interfaces/libpq/fe-print.c

src/interfaces/libpq/fe-secure.c