Merge branch 'master' of https://gitbox.apache.org/repos/asf/commons-configuration
diff --git a/src/main/java/org/apache/commons/configuration2/resolver/CatalogResolver.java b/src/main/java/org/apache/commons/configuration2/resolver/CatalogResolver.java
index df51d28..e893e60 100644
--- a/src/main/java/org/apache/commons/configuration2/resolver/CatalogResolver.java
+++ b/src/main/java/org/apache/commons/configuration2/resolver/CatalogResolver.java
@@ -328,7 +328,7 @@
 
         /**
          * Sets the ConfigurationInterpolator.
-         * 
+         *
          * @param configurationInterpolator the ConfigurationInterpolator.
          */
         public void setInterpolator(final ConfigurationInterpolator configurationInterpolator)
@@ -338,7 +338,7 @@
 
         /**
          * Gets the ConfigurationInterpolator.
-         * 
+         *
          * @return the ConfigurationInterpolator.
          */
         public ConfigurationInterpolator getInterpolator()