=item Arguments: $path, $interpolate
-=item Return value: \%environment_vars
+=item Return value: %environment_vars
=back
=back
Returns a path describing where to install the executable programs for this
-local library installation. Based on the L</install_base_perl_path> method's
-return value, and appends the directory C<bin>.
+local library installation. Appends the directory C<bin> to the given path.
=head2 resolve_empty_path