Typo in distro.net_ops.flush_addr

[Ninjaclasher]

Bug report

There seems to be a typo in distro.net_ops.flush_addr, which causes an invalid use of iproute2.

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/cloudinit/sources/helpers/digitalocean.py", line 81, in del_ipv4_link_local
    distro.net_ops.flush_addr(nic)
  File "/usr/lib/python3/dist-packages/cloudinit/net/netops/iproute2.py", line 144, in flush_addr
    subp.subp(["ip", "flush", "dev", interface])
  File "/usr/lib/python3/dist-packages/cloudinit/subp.py", line 295, in subp
    raise ProcessExecutionError(
cloudinit.subp.ProcessExecutionError: Unexpected error while running command.
Command: ['ip', 'flush', 'dev', 'eth0']
Exit code: 1
Reason: -
Stdout:
Stderr: Object "flush" is unknown, try "ip help".

This seems to be an obvious regression from 01027e5, since the previous use (01027e5#diff-2fdeaaf3b1491e952eb4c6396294e92160441da230ba0a225eccab85ffe2f75dL89) had addr, while the new function (01027e5#diff-f64049dab9ba0007ced723f722be7e0e70977baa9c4582161b9c04008ac6a4efR144) does not.

Environment details

$ cloud-init --version
/usr/bin/cloud-init 24.2-0ubuntu1~24.04.2