cmd/geth, cmd/swarm: sort commands and flags by name (#3462)

cmd/geth/main.go

@@ -21,6 +21,7 @@ import (
 	"fmt"
 	"os"
 	"runtime"
+	"sort"
 	"strings"
 	"time"
 
@@ -165,6 +166,7 @@ func init() {
 		// See config.go
 		dumpConfigCommand,
 	}
+	sort.Sort(cli.CommandsByName(app.Commands))
 
 	app.Flags = append(app.Flags, nodeFlags...)
 	app.Flags = append(app.Flags, rpcFlags...)

cmd/swarm/main.go

@@ -25,6 +25,7 @@ import (
 	"os"
 	"os/signal"
 	"runtime"
+	"sort"
 	"strconv"
 	"strings"
 	"syscall"
@@ -302,6 +303,7 @@ DEPRECATED: use 'swarm db clean'.
 `,
 		},
 	}
+	sort.Sort(cli.CommandsByName(app.Commands))
 
 	app.Flags = []cli.Flag{
 		utils.IdentityFlag,