Tweak pvlist output to make it easier to cut/paste w/o picking up unwanted syntax

pvtoolsSrc/pvlist.cpp

@@ -618,9 +618,9 @@ int main (int argc, char *argv[])
             {
                 cout << inetAddressToString(entry.addresses[i]);
                 if (i < (count-1))
-                    cout << ", ";
+                    cout << " ";
             }
-            cout << ']' << endl;
+            cout << " ]" << endl;
         }
     }
     else