test: Disable tethering test script takes exactly one argument

With one argument, len(sys.argv) is equal to 2.

diff --git a/test/disable-tethering b/test/disable-tethering
index d9c56a0..a3d5908 100755 (executable)
--- a/test/disable-tethering
+++ b/test/disable-tethering
@@ -3,7 +3,7 @@
 import sys
 import dbus
 
-if (len(sys.argv) < 2):
+if (len(sys.argv) != 2):
        print "Usage: %s type" % (sys.argv[0])
        sys.exit(1)