[PATCH cygport] git.cygclass: Suppress the depth option

[Jon Turney]

On 16/02/2024 11:59, Daisuke Fujimura via Cygwin-apps wrote:
> Thank you for merging.
> 
> I have confirmed that this modification has resulted in the intended behaviour.
> 
[...]
> 
> $ head -3 agbsum-15-1bl1.cygport
> HOMEPAGE="https://mandelbrot.dk/${PN}"
> GIT_URI="https://mandelbrot.dk/${PN}"
> GIT_TAG="${PV}"
> 
> $ cygport agbsum-15-1bl1.cygport fetch
> *** Info: Trying to enable case sensitivity on /tmp/agbsum/agbsum-15-1bl1.x86_64
> git clone --depth 1 --branch 15 --no-checkout
> https://mandelbrot.dk/agbsum agbsum
> Cloning into 'agbsum'...
> fatal: dumb http transport does not support shallow capabilities
> *** Warning: git clone failed, retrying without --depth option
> git clone --branch 15 --no-checkout https://mandelbrot.dk/agbsum agbsum
> Cloning into 'agbsum'...
> Fetching objects: 251, done.
> git checkout tags/15
> HEAD is now at bef1780 Rename source directory: 'src' => 'source';
> Update naming convention; Update copyright holder name; Update code
> style;
> 
> ```

Thank you very much for testing!