for_all_repos: Empty KAS_REPO_URL if repo is not under version control

repo.url will point the repo.path in that case, but we want the user to
see an empty KAS_REPO_URL, as also documented.

Reported-by: Daniel Wagenknecht <dwagenknecht@emlix.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

kas/plugins/for_all_repos.py

@@ -100,7 +100,7 @@ class ForAllReposCommand(Command):
                 **ctx.environ,
                 'KAS_REPO_NAME': repo.name,
                 'KAS_REPO_PATH': repo.path,
-                'KAS_REPO_URL': repo.url or '',
+                'KAS_REPO_URL': '' if repo.operations_disabled else repo.url,
                 'KAS_REPO_REFSPEC': repo.refspec or '',
             }
             logging.info('%s$ %s', repo.path, self.command)