#721 Remove "git clone" from git URLs for cut-and-paste

[Christoph Berg]

When copying git URLs from project pages, and additional "git clone " prefix is included. When copy-and-pasting that to the terminal, people often end up with typing "git clone ", and pasting the URL, leading to the (invalid) command:
git clone git clone some://git/url

Other git hosters (e.g. github) provide the plain URL only, so experienced developers (which sf.net claims to target) will often run into the above problem.

Please consider offering the "real" URL only. Would also help for use cases like "git remote add sf some://git/url".

Thanks.

Corresponding git ticket: https://public-inbox.org/git/20191119141537.GD18924@msg.df7cb.de/