Is it platform specific

generic

Importance or Severity

Medium

Description of the enhancement

the command show ip route currently does not show any information on possible command options in its help text:
`
user@sonic-host:~$ show ip route -h
Usage: show ip route [OPTIONS] [IPADDRESS] [vrf <vrf_name>] [...]

Show IP (IPv4) routing table

Options:
-d, --display TEXT all|frontend
-n, --namespace TEXT Namespace name or all
--verbose Enable verbose output
-?, -h, --help Show this message and exit.
`

For example, show ip route summary is an option but no info is in the help text

Current Behavior

current behaviour shows no info for subcommands

Proposed Behavior

display subcommands in help text