Description of problem:
ip rule list doesn't support sport/dport/ipproto

Version-Release number of selected component (if applicable):
iproute-4.18.0-11.el8.x86_64

How reproducible:
Always

Steps to Reproduce:
1. ip rule list sport 12345
2.
3.

Actual results:
Error: inet prefix is expected rather than "sport".

Expected results:
the command should pass

Additional info:

[root@kvm-01-guest14 func]# rpm -q iproute     
iproute-4.18.0-11.el8.x86_64
[root@kvm-01-guest14 func]# ip rule help
Usage: ip rule { add | del } SELECTOR ACTION
       ip rule { flush | save | restore }
       ip rule [ list [ SELECTOR ]]
SELECTOR := [ not ] [ from PREFIX ] [ to PREFIX ] [ tos TOS ] [ fwmark FWMARK[/MASK] ]
            [ iif STRING ] [ oif STRING ] [ pref NUMBER ] [ l3mdev ]
            [ uidrange NUMBER-NUMBER ]
            [ ipproto PROTOCOL ]
            [ sport [ NUMBER | NUMBER-NUMBER ]
            [ dport [ NUMBER | NUMBER-NUMBER ] ]

<=== help shows that ip rule list supports sport/dport/ipproto

ACTION := [ table TABLE_ID ]
          [ protocol PROTO ]
          [ nat ADDRESS ]
          [ realms [SRCREALM/]DSTREALM ]
          [ goto NUMBER ]
          SUPPRESSOR
SUPPRESSOR := [ suppress_prefixlength NUMBER ]
              [ suppress_ifgroup DEVGROUP ]
TABLE_ID := [ local | main | default | NUMBER ]

[root@kvm-01-guest14 func]# ip rule list sport 12345                                          
Error: inet prefix is expected rather than "sport".