[PATCH] test: copyright information updates

[David Bremner]

Tomi Ollila <tomi.ollila at iki.fi> writes:
>
> As a side enchangement, all of the 3 entries in the whole source
> tree cd'ing to `dirname` of "$0" now uses syntax cd "$(dirname "$0")".
> This makes these particular lines work when current working directory
> is e.g. /c/Program Files/notmuch/test/.
> (Probably it would fail elsewhere, though.)

pushed, with some grumbling about the patch combining

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