Fix typos in javadoc

Author: mbhave

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/system/CapturedOutput.java

@@ -18,7 +18,7 @@
 
 /**
  * Provides access to {@link System#out System.out} and {@link System#err System.err}
- * output that has been capture by the {@link OutputCaptureExtension}. Can be used to
+ * output that has been captured by the {@link OutputCaptureExtension}. Can be used to
  * apply assertions either using AssertJ or standard JUnit assertions. For example:
  * <pre class="code">
  * assertThat(output).contains("started"); // Checks all output

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/system/OutputCapture.java

@@ -276,7 +276,7 @@ private enum Type {
 	}
 
 	/**
-	 * Save disable and restore AnsiOutput without it needing to be on the classpath.
+	 * Save, disable and restore AnsiOutput without it needing to be on the classpath.
 	 */
 	private static class AnsiOutputState {
 

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/system/OutputCaptureExtension.java

@@ -37,7 +37,7 @@
  * argument to your test class constructor or test method:
  *
  * <pre class="code">
- * &#064;ExtendWith(OutputExtension.class)
+ * &#064;ExtendWith(OutputCaptureExtension.class)
  * class MyTest {
  *
  *     &#064;Test