Print global arguments for 'dolt --help' but not 'dolt'

go/cmd/dolt/dolt.go

@@ -427,6 +427,15 @@ func runMain() int {
 	globalArgs, args, initCliContext, printUsage, err := splitArgsOnSubCommand(args)
 	if printUsage {
 		doltCommand.PrintUsage("dolt")
+		_, usage := cli.HelpAndUsagePrinters(cli.CommandDocsForCommandString("dolt", doc, globalArgParser))
+
+		specialMsg := `
+Dolt subcommands are in transition to using the flags listed below as global flags.
+The sql subcommand is currently the only command that uses these flags. All other commands will ignore them.
+`
+		cli.Println(specialMsg)
+		usage()
+
 		return 0
 	}
 	if err != nil {