the release of grep-2.9 is imminent

[Jim Meyering]

I'm prepared to release grep-2.9.
There have been more than enough fixes since 2.8:
(from NEWS):

    grep no longer clobbers heap for an ERE like '(^| )*( |$)'
    [bug introduced in grep-2.6]

    grep is faster on regular expressions that match multibyte characters
    in brackets (such as '[<C3><A1><C3><A9><C3><AD><C3><B3><C3><BA>]').

    echo c|grep '[c]' would fail for any c in 0x80..0xff, with a uni-byte
    encoding for which the byte-to-wide-char mapping is nontrivial.  For
    example, the ISO-88591 locales are not affected, but ru_RU.KOI8-R is.
    [bug introduced in grep-2.6]

    grep -P no longer aborts when PCRE's backtracking limit is exceeded
    Before, echo aaaaaaaaaaaaaab |grep -P '((a+)*)+$' would abort.  Now,
    it diagnoses the problem and exits with status 2.

If anyone has something that they'd like to see in 2.9,
please let us know.

Also, I want to make this bug-fix release before we perform
any regex-rationalization surgery.