Help: Update OSC help text to document plugin lookup by name

Signed-off-by: Asahi Lina <lina@asahilina.net>

source/backend/engine/CarlaEngineOscHandlers.cpp

@@ -142,7 +142,6 @@ int CarlaEngineOsc::handleMessage(const bool isTCP, const char* const path,
         {
             plugin = fEngine->getPluginUnchecked(pluginId);
 
-            carla_stderr("%s %s %d\n", plugin->getName(), pluginPath, pluginLen);
             if (strlen(plugin->getName()) == pluginLen && !strncmp(plugin->getName(), pluginPath, pluginLen)) {
                 break;
             }

source/frontend/C++/carla_widgets.cpp

@@ -118,7 +118,8 @@ struct CarlaAboutW::PrivateData {
                                "</table>");
 
         ui.l_example->setText("/Carla/2/set_parameter_value 5 1.0");
-        ui.l_example_help->setText("<i>(as in this example, \"2\" is the plugin number and \"5\" the parameter)</i>");
+        ui.l_example_help->setText("<i>(In this example, \"2\" is the plugin number and \"5\" the parameter.<br>"
+                                   "Plugins can also be referenced by their name.)</i>");
 
         ui.l_ladspa->setText(tr("Everything! (Including LRDF)"));
         ui.l_dssi->setText(tr("Everything! (Including CustomData/Chunks)"));

source/frontend/dialogs/aboutdialog.cpp

@@ -72,7 +72,8 @@ AboutDialog::AboutDialog(QWidget* const parent,
                            "</table>");
 
     ui.l_example->setText("/Carla/2/set_parameter_value 5 1.0");
-    ui.l_example_help->setText("<i>(as in this example, \"2\" is the plugin number and \"5\" the parameter)</i>");
+    ui.l_example_help->setText("<i>(In this example, \"2\" is the plugin number and \"5\" the parameter.<br>"
+                              "Plugins can also be referenced by their name.)</i>");
 
     ui.l_ladspa->setText(tr("Everything! (Including LRDF)"));
     ui.l_dssi->setText(tr("Everything! (Including CustomData/Chunks)"));