Fix typo in docker.Makefile
Fix typo in docker.Makefile

Signed-off-by: Nishant Totla <18d513b5cc13a17570075e17ff7a4e1db98175e4@gmail.com>

thaJeztah/cli,ashfall/cli,riyazdf/cli,riyazdf/cli,e11137/cli,thaJeztah/cli,e11137/cli,docker/cli,allencloud/cli,cpuguy83/cli,allencloud/cli,docker/cli,dnephin/cli,dnephin/cli,Zebrilee/cli,redpanda/cli,Zebrilee/cli,cpuguy83/cli,ashfall/cli,redpanda/cli