vcl: remove verbose output from vcl iperf tests

For high throughput tests the amount of debug output can be
considerable.

Type: improvement

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Icc9f2092918ebca432502af960da11b154818a02
diff --git a/src/vcl/test/test_vcl.py b/src/vcl/test/test_vcl.py
index afb3848..f5a5beb 100644
--- a/src/vcl/test/test_vcl.py
+++ b/src/vcl/test/test_vcl.py
@@ -262,8 +262,8 @@
         self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
                                       self.server_addr, self.server_port]
         self.client_iperf3_timeout = 20
-        self.client_iperf3_args = ["-V4d", "-t 2", "-c", self.server_addr]
-        self.server_iperf3_args = ["-V4d", "-s"]
+        self.client_iperf3_args = ["-4d", "-t 2", "-c", self.server_addr]
+        self.server_iperf3_args = ["-4d", "-s"]
         self.client_uni_dir_nsock_timeout = 20
         self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                                "-I", "2",
@@ -623,8 +623,8 @@
 
         self.thru_host_stack_setup()
         self.client_iperf3_timeout = 20
-        self.client_iperf3_args = ["-V4d", "-t 2", "-c", self.loop0.local_ip4]
-        self.server_iperf3_args = ["-V4d", "-s"]
+        self.client_iperf3_args = ["-4d", "-t 2", "-c", self.loop0.local_ip4]
+        self.server_iperf3_args = ["-4d", "-s"]
 
     def tearDown(self):
         self.thru_host_stack_tear_down()
@@ -658,9 +658,9 @@
 
         self.thru_host_stack_setup()
         self.client_iperf3_timeout = 20
-        self.client_iperf3_args = ["-V4d", "-t 2", "-u", "-l 1400",
+        self.client_iperf3_args = ["-4d", "-t 2", "-u", "-l 1400",
                                    "-c", self.loop0.local_ip4]
-        self.server_iperf3_args = ["-V4d", "-s"]
+        self.server_iperf3_args = ["-4d", "-s"]
 
     def tearDown(self):
         self.thru_host_stack_tear_down()
@@ -699,9 +699,9 @@
         self.client_ipv6_echo_test_args = ["-6", "-E", self.echo_phrase, "-X",
                                            self.server_ipv6_addr,
                                            self.server_port]
-        self.client_ipv6_iperf3_args = ["-V6d", "-t 2", "-c",
+        self.client_ipv6_iperf3_args = ["-6d", "-t 2", "-c",
                                         self.server_ipv6_addr]
-        self.server_ipv6_iperf3_args = ["-V6d", "-s"]
+        self.server_ipv6_iperf3_args = ["-6d", "-s"]
         self.client_ipv6_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                                     "-6",
                                                     "-I", "2",