Correct ApplicationPidFileWriter property javadoc

Fixes gh-2041

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/system/ApplicationPidFileWriter.java

@@ -36,8 +36,7 @@ import org.springframework.util.Assert;
  * An {@link ApplicationListener} that saves application PID into file. This application
  * listener will be triggered exactly once per JVM, and the file name can be overridden at
  * runtime with a System property or environment variable named "PIDFILE" (or "pidfile")
- * or using a {@code spring.application.pidfile} property in the Spring
- * {@link Environment}.
+ * or using a {@code spring.pidfile} property in the Spring {@link Environment}.
  *
  * @author Jakub Kubrynski
  * @author Dave Syer

spring-boot/src/test/java/org/springframework/boot/env/YamlPropertySourceLoaderTests.java

@@ -61,4 +61,5 @@ public class YamlPropertySourceLoaderTests {
 		assertNotNull(source);
 		assertThat(source.getPropertyNames(), equalTo(expected.toArray(new String[] {})));
 	}
+
 }