zsh: fix completion when docker output only has the header line Upstream-commit: f6e9f71e706d0c456977a0a29a65ce52f63c49f9 Component: engine
zsh: fix completion when docker output only has the header line Upstream-commit: f6e9f71e706d0c456977a0a29a65ce52f63c49f9 Component: engine