vegeta: Exclude deprecated cmds from help message

dump.go

@@ -1,13 +1,11 @@
 package main
 
 import (
-	"flag"
 	"fmt"
 )
 
 func dumpCmd() command {
-	fs := flag.NewFlagSet("vegeta dump", flag.ExitOnError)
-	return command{fs, func([]string) error {
-		return fmt.Errorf("vegeta dump has been deprecated and succeeded by the vegeta encode command.")
+	return command{fn: func([]string) error {
+		return fmt.Errorf("vegeta dump has been deprecated and succeeded by the vegeta encode command")
 	}}
 }

main.go

@@ -7,6 +7,7 @@ import (
 	"os"
 	"runtime"
 	"runtime/pprof"
+	"sort"
 	"strings"
 )
 
@@ -28,10 +29,20 @@ func main() {
 		fmt.Println("Usage: vegeta [global flags] <command> [command flags]")
 		fmt.Printf("\nglobal flags:\n")
 		fs.PrintDefaults()
-		for name, cmd := range commands {
-			fmt.Printf("\n%s command:\n", name)
-			cmd.fs.PrintDefaults()
+
+		names := make([]string, 0, len(commands))
+		for name := range commands {
+			names = append(names, name)
+		}
+
+		sort.Strings(names)
+		for _, name := range names {
+			if cmd := commands[name]; cmd.fs != nil {
+				fmt.Printf("\n%s command:\n", name)
+				cmd.fs.PrintDefaults()
+			}
 		}
+
 		fmt.Println(examples)
 	}