(EXTRA_DIST): Add alloca.m4, backupfile.m4, bison.m4, chown.m4,

(EXTRA_DIST): Add alloca.m4, backupfile.m4, bison.m4, chown.m4,
dirname.m4, dos.m4, exclude.m4, fileblocks.m4, ftruncate.m4,
getdate.m4, getopt.m4, hash.m4, human.m4, intdiv0.m4, intmax_t.m4,
inttypes_h.m4, inttypes-pri.m4, isc-posix.m4, lcown.m4, lib-ld.m4,
lib-link.m4, lib-prefix.m4, memset.m4, mktime.m4, modechange.m4,
nls.m4, onceonly.m4, pathmax.m4, po.m4, quotearg.m4, quote.m4,
rmdir.m4, safe-read.m4, safe-write.m4, save-cwd.m4, savedir.m4,
ssize_t.m4, stdbool.m4, stdint_h.m4, strcase.m4, strtoimax.m4,
strtoll.m4, strtol.m4, strtoull.m4, strtoul.m4, strtoumax.m4,
tm_gmtoff.m4, uintmax_t.m4, unlocked-io.m4, xalloc.m4, xgetcwd.m4,
xstrtol.m4.  Remove c-bs-a.m4, ccstdc.m4, check-decl.m4, decl.m4,
jm-mktime.m4, prereq.m4, xstrtoimax.m4.