shell.rb in chef-sugar-ng-5.1.11

- old
+ new

@@ -12,11 +12,11 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
 
-require 'mixlib/shellout'
-require 'pathname'
+require 'mixlib/shellout' unless defined?(Mixlib::ShellOut)
+require 'pathname' unless defined?(Pathname)
 
 class Chef
   module Sugar
     module Shell
       extend self