Index: /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceToolBox.cpp
===================================================================
--- /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceToolBox.cpp	(revision 36753)
+++ /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceToolBox.cpp	(revision 36754)
@@ -195,5 +195,5 @@
                 if (rc == VERR_BROKEN_PIPE)
                     rc = VINF_SUCCESS;
-                else
+                else if (RT_FAILURE(rc))
                     RTMsgError("cat: Error while reading input, rc=%Rrc\n", rc);
                 break;