fishtool: simplify arg parsing a bit
fishtool: simplify arg parsing a bit

The fishtool action now has to be the first element on the command line

Signed-off-by: Colin McCabe <3142ce8a0bdba4a38073365893e6b74f72d9c512@alumni.cmu.edu>

cmccabe/redfish,cmccabe/redfish,cmccabe/redfish,cmccabe/redfish,cmccabe/redfish