QbsProjectManager: Show executable path in run config widget

This appears to have broken in a recent refactoring.

Change-Id: Ice186197329b3b22635a8aca6d9bb4bb6e3418c5
Reviewed-by: hjk <hjk@qt.io>

src/plugins/qbsprojectmanager/qbsrunconfiguration.cpp

@@ -338,6 +338,7 @@ QbsRunConfigurationWidget::QbsRunConfigurationWidget(QbsRunConfiguration *rc)
 
     connect(m_rc, &RunConfiguration::enabledChanged,
             this, &QbsRunConfigurationWidget::targetInformationHasChanged);
+    targetInformationHasChanged();
 
     Core::VariableChooser::addSupportForChildWidgets(this, rc->macroExpander());
 }