Fixed javadoc of MutableBoolean setTrue / setFalse (closes #260)
diff --git a/src/main/java/org/apache/commons/lang3/mutable/MutableBoolean.java b/src/main/java/org/apache/commons/lang3/mutable/MutableBoolean.java
index 085df40..97781bf 100644
--- a/src/main/java/org/apache/commons/lang3/mutable/MutableBoolean.java
+++ b/src/main/java/org/apache/commons/lang3/mutable/MutableBoolean.java
@@ -90,7 +90,7 @@ public void setValue(final boolean value) {
     }
 
     /**
-     * Sets the value to true.
+     * Sets the value to false.
      * 
      * @since 3.3
      */
@@ -99,7 +99,7 @@ public void setFalse() {
     }
 
     /**
-     * Sets the value to false.
+     * Sets the value to true.
      * 
      * @since 3.3
      */