fix formatting, add additional -Werror flags for LTO

meson.build

@@ -831,6 +831,8 @@ test_strict_cflags += [
   '-Werror=redundant-decls',
   '-Werror=strict-prototypes',
   '-Werror=sizeof-array-argument',
+  '-Werror=lto-type-mismatch',
+  '-Werror=odr',
   ]
 
 if is_gcc

src/gui/widgets/bot_bar.c

@@ -214,8 +214,8 @@ on_transport_playhead_right_click (
 #endif
 
   gtk_widget_insert_action_group (
-    GTK_WIDGET (self->digital_transport), "bot-bar",
-    G_ACTION_GROUP (action_group));
+    GTK_WIDGET (self->digital_transport),
+    "bot-bar", G_ACTION_GROUP (action_group));
 
   digital_meter_show_context_menu (
     self->digital_transport, menu);