use session.err rather than System.err to write message added in FELIX-1405.


git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@804912 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/gogo/runtime/src/main/java/org/apache/felix/gogo/runtime/shell/Closure.java b/gogo/runtime/src/main/java/org/apache/felix/gogo/runtime/shell/Closure.java
index 665728b..211fecf 100644
--- a/gogo/runtime/src/main/java/org/apache/felix/gogo/runtime/shell/Closure.java
+++ b/gogo/runtime/src/main/java/org/apache/felix/gogo/runtime/shell/Closure.java
@@ -96,7 +96,7 @@
             if (pipe.exception != null)
             {
                 // can't throw exception, as result is defined by last pipe
-                System.err.println("pipe: " + pipe.exception);
+                session.err.println("pipe: " + pipe.exception);
             }
         }