Solaris cleanup.

src/backend/port/dynloader/solaris_i386.c

src/backend/port/dynloader/solaris_i386.h

src/backend/port/dynloader/solaris_sparc.c

src/backend/port/dynloader/solaris_sparc.h

src/backend/port/getrusage.c

src/backend/port/tas/solaris_i386.s

src/backend/storage/ipc/ipc.c

src/backend/storage/lmgr/proc.c

src/bin/pg_dump/common.c

src/bin/pg_dump/pg_dump.c

src/include/port/solaris_i386.h

src/include/port/solaris_sparc.h