Fix typos

spring-boot-devtools/src/main/java/org/springframework/boot/devtools/remote/client/LocalDebugPortAvailableCondition.java

@@ -40,9 +40,9 @@ class LocalDebugPortAvailableCondition extends SpringBootCondition {
 			port = RemoteDevToolsProperties.Debug.DEFAULT_LOCAL_PORT;
 		}
 		if (isPortAvailable(port)) {
-			return ConditionOutcome.match("Local debug port availble");
+			return ConditionOutcome.match("Local debug port available");
 		}
-		return ConditionOutcome.noMatch("Local debug port unavailble");
+		return ConditionOutcome.noMatch("Local debug port unavailable");
 	}
 
 	private boolean isPortAvailable(int port) {

spring-boot-devtools/src/main/java/org/springframework/boot/devtools/restart/RestartScope.java

@@ -25,7 +25,7 @@ import java.lang.annotation.Target;
 import org.springframework.context.annotation.Scope;
 
 /**
- * Restart {@code @Scope} Annotation used to indicate that a bean shoul remain beteen
+ * Restart {@code @Scope} Annotation used to indicate that a bean should remain between
  * restarts.
  *
  * @author Phillip Webb

spring-boot-devtools/src/main/java/org/springframework/boot/devtools/restart/Restarter.java

@@ -545,7 +545,7 @@ public class Restarter {
 	}
 
 	/**
-	 * {@link ThreadFactory} that creates a leak safe thead.
+	 * {@link ThreadFactory} that creates a leak safe thread.
 	 */
 	private class LeakSafeThreadFactory implements ThreadFactory {