o using log instead of stacktrace

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@803834 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/java/org/apache/maven/plugin/changelog/FileActivityReport.java b/src/main/java/org/apache/maven/plugin/changelog/FileActivityReport.java
index d39992f..431e9bc 100644
--- a/src/main/java/org/apache/maven/plugin/changelog/FileActivityReport.java
+++ b/src/main/java/org/apache/maven/plugin/changelog/FileActivityReport.java
@@ -175,7 +175,14 @@
             }
             catch ( Exception e )
             {
-                e.printStackTrace();
+                if ( getLog().isDebugEnabled() )
+                {
+                    getLog().error( e.getMessage(), e );
+                }
+                else
+                {
+                    getLog().error( e.getMessage() );
+                }
 
                 sink.text( file.getName() );
             }