clone: Fix some UI resizing issues

src/virtManager/clone.py

@@ -128,6 +128,7 @@ class vmmCloneVM(vmmGObjectUI):
     def show(self, parent):
         self.reset_state()
         self.topwin.set_transient_for(parent)
+        self.topwin.resize(1, 1)
         self.topwin.present()
 
     def close(self, ignore1=None, ignore2=None):

src/vmm-clone.glade

@@ -882,6 +882,7 @@ uses the existing disk image for both the original and the new machine.</span
                 </child>
               </widget>
               <packing>
+                <property name="expand">False</property>
                 <property name="position">1</property>
               </packing>
             </child>