Fix formatting (#3023)

A new version of the formatter or something might have rolled in, causing CI to break
diff --git a/packages/shared_preferences/shared_preferences_linux/example/linux/flutter/generated_plugin_registrant.cc b/packages/shared_preferences/shared_preferences_linux/example/linux/flutter/generated_plugin_registrant.cc
index d38195a..890de29 100644
--- a/packages/shared_preferences/shared_preferences_linux/example/linux/flutter/generated_plugin_registrant.cc
+++ b/packages/shared_preferences/shared_preferences_linux/example/linux/flutter/generated_plugin_registrant.cc
@@ -4,6 +4,4 @@
 
 #include "generated_plugin_registrant.h"
 
-
-void fl_register_plugins(FlPluginRegistry* registry) {
-}
+void fl_register_plugins(FlPluginRegistry* registry) {}
diff --git a/packages/shared_preferences/shared_preferences_linux/example/linux/my_application.cc b/packages/shared_preferences/shared_preferences_linux/example/linux/my_application.cc
index c2357f1..f079e19 100644
--- a/packages/shared_preferences/shared_preferences_linux/example/linux/my_application.cc
+++ b/packages/shared_preferences/shared_preferences_linux/example/linux/my_application.cc
@@ -14,7 +14,7 @@
 static void my_application_activate(GApplication* application) {
   GtkWindow* window =
       GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
-  GtkHeaderBar *header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+  GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
   gtk_widget_show(GTK_WIDGET(header_bar));
   gtk_header_bar_set_title(header_bar, "example");
   gtk_header_bar_set_show_close_button(header_bar, TRUE);
diff --git a/packages/url_launcher/url_launcher/example/linux/flutter/generated_plugin_registrant.cc b/packages/url_launcher/url_launcher/example/linux/flutter/generated_plugin_registrant.cc
index 026851f..36185a6 100644
--- a/packages/url_launcher/url_launcher/example/linux/flutter/generated_plugin_registrant.cc
+++ b/packages/url_launcher/url_launcher/example/linux/flutter/generated_plugin_registrant.cc
@@ -8,6 +8,7 @@
 
 void fl_register_plugins(FlPluginRegistry* registry) {
   g_autoptr(FlPluginRegistrar) url_launcher_linux_registrar =
-      fl_plugin_registry_get_registrar_for_plugin(registry, "UrlLauncherPlugin");
+      fl_plugin_registry_get_registrar_for_plugin(registry,
+                                                  "UrlLauncherPlugin");
   url_launcher_plugin_register_with_registrar(url_launcher_linux_registrar);
 }
diff --git a/packages/url_launcher/url_launcher/example/linux/my_application.cc b/packages/url_launcher/url_launcher/example/linux/my_application.cc
index c2357f1..f079e19 100644
--- a/packages/url_launcher/url_launcher/example/linux/my_application.cc
+++ b/packages/url_launcher/url_launcher/example/linux/my_application.cc
@@ -14,7 +14,7 @@
 static void my_application_activate(GApplication* application) {
   GtkWindow* window =
       GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
-  GtkHeaderBar *header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+  GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
   gtk_widget_show(GTK_WIDGET(header_bar));
   gtk_header_bar_set_title(header_bar, "example");
   gtk_header_bar_set_show_close_button(header_bar, TRUE);
diff --git a/packages/url_launcher/url_launcher_linux/example/linux/flutter/generated_plugin_registrant.cc b/packages/url_launcher/url_launcher_linux/example/linux/flutter/generated_plugin_registrant.cc
index 026851f..36185a6 100644
--- a/packages/url_launcher/url_launcher_linux/example/linux/flutter/generated_plugin_registrant.cc
+++ b/packages/url_launcher/url_launcher_linux/example/linux/flutter/generated_plugin_registrant.cc
@@ -8,6 +8,7 @@
 
 void fl_register_plugins(FlPluginRegistry* registry) {
   g_autoptr(FlPluginRegistrar) url_launcher_linux_registrar =
-      fl_plugin_registry_get_registrar_for_plugin(registry, "UrlLauncherPlugin");
+      fl_plugin_registry_get_registrar_for_plugin(registry,
+                                                  "UrlLauncherPlugin");
   url_launcher_plugin_register_with_registrar(url_launcher_linux_registrar);
 }
diff --git a/packages/url_launcher/url_launcher_linux/example/linux/my_application.cc b/packages/url_launcher/url_launcher_linux/example/linux/my_application.cc
index c2357f1..f079e19 100644
--- a/packages/url_launcher/url_launcher_linux/example/linux/my_application.cc
+++ b/packages/url_launcher/url_launcher_linux/example/linux/my_application.cc
@@ -14,7 +14,7 @@
 static void my_application_activate(GApplication* application) {
   GtkWindow* window =
       GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
-  GtkHeaderBar *header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+  GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
   gtk_widget_show(GTK_WIDGET(header_bar));
   gtk_header_bar_set_title(header_bar, "example");
   gtk_header_bar_set_show_close_button(header_bar, TRUE);