bug#36644: Git log search

[Robert Pluim]

>>>>> On Tue, 16 Jul 2019 17:25:39 +0300, Dmitry Gutov <dgutov@yandex.ru> said:
    >>> Git supports regexps, but maybe we should look at what other backends
    >>> can support as well.
    >> 
    >> It seems the most compatible type is string.

    Dmitry> OK, if that is your conclusion.

If the most compatible type is string, surely emacs should do no
regexp-quoting or anything else on the argument, but just pass it
verbatim to the backend search command. That way you could do eg

Bug.*0

to get all log entries with a bug reference ending in 0.

Robert