don't print help message for usage errors

Don't print potentially verbose help messages in case of usage errors,
but print only the usage error followed by a pointer to the command's
help.  This aligns with Docker.

```
$ podman run -h
flag needs an argument: -h
See 'podman run --help'.
```

Signed-off-by: Valentin Rothberg <vrothberg@suse.com>

Closes: #1379
Approved by: rhatdan

cmd/podman/create.go

@@ -52,6 +52,7 @@ var createCommand = cli.Command{
 	HideHelp:               true,
 	SkipArgReorder:         true,
 	UseShortOptionHandling: true,
+	OnUsageError:           usageErrorHandler,
 }
 
 func createCmd(c *cli.Context) error {