Fix Javadoc typo.
diff --git a/src/main/java/org/apache/commons/configuration2/XMLConfiguration.java b/src/main/java/org/apache/commons/configuration2/XMLConfiguration.java
index 540486d..0248265 100644
--- a/src/main/java/org/apache/commons/configuration2/XMLConfiguration.java
+++ b/src/main/java/org/apache/commons/configuration2/XMLConfiguration.java
@@ -875,7 +875,7 @@
     /**
      * Creates and initializes the transformer used for save operations. This
      * base implementation initializes all of the default settings like
-     * indention mode and the DOCTYPE. Derived classes may overload this method
+     * indentation mode and the DOCTYPE. Derived classes may overload this method
      * if they have specific needs.
      *
      * @return the transformer to use for a save operation