commands: fix checking of share safe requirement on `config --shared`

The `if requirements.SHARESAFE_REQUIREMENT in ...` was wrongly placed inside
another if statement which made the check unreachable.

Differential Revision: https://phab.mercurial-scm.org/D9360

mercurial/commands.py

@@ -2230,7 +2230,7 b' def config(ui, repo, *values, **opts):'
                 if requirements.SHARESAFE_REQUIREMENT not in repo.requirements:
                     raise error.InputError(
                         _(
-                            b"share safe feature not unabled; "
+                        b"share safe feature not enabled; "
                             b"unable to edit shared source repository config"
                         )
                     )