Fix for vppctl to suppress "load_one_plugin:63: Loaded plugin:" msgs

Change-Id: I06fcb024036b48a6401d2865a2181b122cb32108
Signed-off-by: Ed Warnicke <eaw@cisco.com>
diff --git a/vpp-api-test/scripts/vppctl b/vpp-api-test/scripts/vppctl
index f4062b6..c348fff 100755
--- a/vpp-api-test/scripts/vppctl
+++ b/vpp-api-test/scripts/vppctl
@@ -16,14 +16,14 @@
 done
 
 if [ "x${CMD_ARGS}" != "x" ]; then
-    echo exec ${CMD_ARGS} | vpp_api_test $PREFIX_ARGS | sed 's/vat# //g'
+    echo exec ${CMD_ARGS} | vpp_api_test $PREFIX_ARGS 2> >(grep -v "^load_one_plugin:")| sed 's/vat# //g'
 else
     echo -n "vpp# "
     while read CMD; do
         if [ "x$CMD" == "xexit" ]; then
             exit
         elif [ "x$CMD" != "x" ]; then
-            echo exec $CMD | vpp_api_test $PREFIX_ARGS| sed 's/vat# //g'
+            echo exec $CMD | vpp_api_test $PREFIX_ARGS 2> >(grep -v "^load_one_plugin:")| sed 's/vat# //g'
         fi
         echo -n "vpp# "
     done