Remove duplicate words

Closes gh-11073

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/Sanitizer.java

@@ -21,8 +21,8 @@ import java.util.regex.Pattern;
 import org.springframework.util.Assert;
 
 /**
- * Strategy that be be used by endpoint implementations to sanitize potentially sensitive
- * keys.
+ * Strategy that should be used by endpoint implementations to sanitize potentially
+ * sensitive keys.
  *
  * @author Christian Dupuis
  * @author Toshiaki Maki

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/annotation/EndpointExtension.java

@@ -30,7 +30,7 @@ import org.springframework.core.annotation.AliasFor;
  * Meta-annotation used to indicate that an annotation provides extension support for an
  * endpoint. Extensions allow additional technology specific {@link Operation operations}
  * to be added to an existing endpoint. For example, a web extension may offer variations
- * of a read operation operation to support filtering based on a query parameter.
+ * of a read operation to support filtering based on a query parameter.
  * <p>
  * Extension annotations must provide an {@link EndpointFilter} to restrict when the
  * extension applies. The {@code endpoint} attribute is usually re-declared using