Fix spacing on subcommand names

help.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+	"strings"
 
 	"go.fifitido.net/cmd/opt"
 )
@@ -43,8 +44,10 @@ func (c *Command) ShowHelp() {
 			fmt.Println("Available subcommands:")
 		}
 
+		paddedWidth := c.Subcommands.MaxWidth()
 		for _, s := range c.Subcommands {
-			fmt.Println("  " + s.Name + "    " + s.ShortDescription)
+			spaceSize := 2 + paddedWidth - len(s.Name)
+			fmt.Println("  " + s.Name + strings.Repeat(" ", spaceSize) + s.ShortDescription)
 		}
 	}
 

set.go

@@ -25,7 +25,7 @@ func (s Set) Get(name string) (*Command, bool) {
 	return nil, false
 }
 
-func (s Set) MaxNameWidth() int {
+func (s Set) MaxWidth() int {
 	max := 0
 	for _, f := range s {
 		if w := len(f.Name); w > max {