zfs: patch client path used in smb share
zfs: patch client path used in smb share

fix zfs smb share integration

before:

# zfs share tank/smb_share
cannot share tank/smb_share: smb add share failed

now works as intended.
NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs