gnome-post-receive doesn't support usernames starting with non-chars
Here's what I get when pushing to my gitlab forks:
remote: /var/opt/gitlab/git-data/repositories/3v1n0/gjs.git/hooks/post-receive.d/post-receive: line 26: export: `3v1n0': not a valid identifier
Of course my nickname can't be a variable: https://gitlab.gnome.org/GNOMEInfrastructure/sysadmin-bin/blob/master/git/gnome-post-receive#L26, but I guess that as per https://gitlab.gnome.org/GNOMEInfrastructure/sysadmin-bin/blob/master/git/gnome-post-receive-email#L129 it should not be used that way.
Edited by Marco Trevisan