Deprecate -c cli short variant flag in docker cli

- build
- create

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
Upstream-commit: d1064bd441612244d7a560c6ceb3704ad12b23a6
Component: engine

components/engine/docs/reference/commandline/create.md

@@ -19,7 +19,7 @@ Creates a new container.
       -a, --attach=[]               Attach to STDIN, STDOUT or STDERR
       --add-host=[]                 Add a custom host-to-IP mapping (host:ip)
       --blkio-weight=0              Block IO weight (relative weight)
-      -c, --cpu-shares=0            CPU shares (relative weight)
+      --cpu-shares=0                CPU shares (relative weight)
       --cap-add=[]                  Add Linux capabilities
       --cap-drop=[]                 Drop Linux capabilities
       --cgroup-parent=""            Optional parent cgroup for the container