Fix example formatting

Signed-off-by: Michael X. Grey <[email protected]>

Author: mxgrey

examples/message_demo/src/message_demo.rs

@@ -168,10 +168,14 @@ fn demonstrate_pubsub() -> Result<(), Error> {
         )?;
     println!("Sending idiomatic message.");
     idiomatic_publisher.publish(rclrs_example_msgs::msg::VariousTypes::default())?;
-    executor.spin(rclrs::SpinOptions::spin_once()).first_error()?;
+    executor
+        .spin(rclrs::SpinOptions::spin_once())
+        .first_error()?;
     println!("Sending RMW-native message.");
     direct_publisher.publish(rclrs_example_msgs::msg::rmw::VariousTypes::default())?;
-    executor.spin(rclrs::SpinOptions::spin_once()).first_error()?;
+    executor
+        .spin(rclrs::SpinOptions::spin_once())
+        .first_error()?;
 
     Ok(())
 }

examples/minimal_pub_sub/src/minimal_two_nodes.rs

@@ -1,8 +1,8 @@
+use rclrs::RclrsErrorFilter;
 use std::sync::{
     atomic::{AtomicU32, Ordering},
     Arc, Mutex,
 };
-use rclrs::RclrsErrorFilter;
 
 use anyhow::{Error, Result};
 

examples/rust_pubsub/src/simple_publisher.rs

@@ -1,4 +1,6 @@
-use rclrs::{Context, Executor, Publisher, RclrsError, SpinOptions, QOS_PROFILE_DEFAULT, RclrsErrorFilter};
+use rclrs::{
+    Context, Executor, Publisher, RclrsError, RclrsErrorFilter, SpinOptions, QOS_PROFILE_DEFAULT,
+};
 use std::{sync::Arc, thread, time::Duration};
 use std_msgs::msg::String as StringMsg;
 

examples/rust_pubsub/src/simple_subscriber.rs

@@ -1,4 +1,6 @@
-use rclrs::{Context, Executor, RclrsError, SpinOptions, Subscription, QOS_PROFILE_DEFAULT, RclrsErrorFilter};
+use rclrs::{
+    Context, Executor, RclrsError, RclrsErrorFilter, SpinOptions, Subscription, QOS_PROFILE_DEFAULT,
+};
 use std::{
     sync::{Arc, Mutex},
     thread,