15:24:02+ make REF=master ubuntu-focal
15:24:02git init --initial-branch=master src/github.com/docker/cli
15:24:02error: unknown option `initial-branch=master'
15:24:02usage: git init [-q | --quiet] [--bare] [--template=<template-directory>] [--shared[=<permissions>]] [<directory>]
15:24:0215:24:02 --template <template-directory>
15:24:02 directory from which templates will be used
15:24:02 --bare create a bare repository
15:24:02 --shared[=<permissions>]
15:24:02 specify that the git repository is to be shared amongst several users
15:24:02 -q, --quiet be quiet
15:24:02 --separate-git-dir <gitdir>
15:24:02 separate git dir from working tree
15:24:0215:24:02Makefile:26: recipe for target 'src/github.com/docker/cli' failed
15:24:02make: *** [src/github.com/docker/cli] Error 129