QT: Change the stretch of columns in the volume selector.

wb/lib/wb/qt/wb_vsel_qt.cqt

@@ -267,6 +267,8 @@ WVselQt::WVselQt(pwr_tStatus* status, void* wv_parent_ctx,
   volumelist->setSelectionMode(QAbstractItemView::SingleSelection);
 
   volumelist->setColumnCount(3);
+  volumelist->header()->setResizeMode(0, QHeaderView::Stretch);
+  volumelist->header()->setStretchLastSection(false);
   volumelist->header()->close();
 
   QDialogButtonBox* buttons = new QDialogButtonBox();
@@ -318,4 +320,4 @@ void WVselQt::list_add_item(char* str)
     item->setText(i, items.at(i));
   }
   volumelist->addTopLevelItem(item);
-}
+}
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