pg_controldata → include Relation

File in src/bin/pg_controldata	Includes file in src/include
pg_controldata.c	catalog / pg_control.h
pg_controldata.c	postgres.h
pg_controldata.c	port / win32_msvc / sys / time.h
pg_controldata.c	port / win32_msvc / unistd.h
pg_controldata.c	access / xlog.h
pg_controldata.c	access / xlog_internal.h