Fix gpioutil tool

Fix gpioutil tool to parse commands, this broke with the
skeleton refactoring commit.

Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/pytools/gpioutil b/pytools/gpioutil
index b6ec5ea..58e02e6 100644
--- a/pytools/gpioutil
+++ b/pytools/gpioutil
@@ -19,6 +19,9 @@
 if (len(sys.argv) < 2):
 	printUsage()
 
+# Pop the command name and point to the args
+sys.argv.pop(0)
+
 GPIO_SYSFS = '/sys/class/gpio/'
 
 class Gpio: