Fix show ip bgp neighbors cmd (#1680)

Author: msosyak

ansible/roles/test/files/ptftests/sad_path.py

@@ -431,7 +431,7 @@ def verify_bgp_dut_state(self, state='Idle'):
                 if key not in ['v4', 'v6']:
                     continue
                 self.log.append('Verifying if the DUT side BGP peer %s is %s' % (self.neigh_bgps[vm][key], states))
-                stdout, stderr, return_code = self.dut_connection.execCommand('show ip bgp neighbor %s' % self.neigh_bgps[vm][key])
+                stdout, stderr, return_code = self.dut_connection.execCommand('show ip bgp neighbors %s' % self.neigh_bgps[vm][key])
                 if return_code == 0:
                     for line in stdout:
                         if 'BGP state' in line: