-fgrep: ???, but required for other patches
-bracket: echo "[" | LANG=en_US.UTF-8 grep ":space:"
-i18n: many fixes for multibyte locale support, required for LSB.
-oi: echo xxYYzz | LANG=C grep -i -o yy
-manpage: typo
-color: restore the background color correctly
-icolor: ??? echo 'spam foo SPAM FOO' | grep -i --color spam
(but that's also fixed by -oi. Is this patch just a cleanup?)
-egf-speedup: without this, grep is as slow as a snail in UTF-8 locales.
-dfa-optional: disables dfa in multibyte locales by default.
-w: (echo 'foo';echo 'fo') > /tmp/testfile && grep -F -w fo /tmp/testfile