Need to check that a valid workload type was specified and print
usage if not.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Ib956e28f9049e49f19adcc09e861db42034799b8
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1900
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
3667603765