fix the shortcut or to be one pipe

Author: reggi

lib/base-cmd.js

@@ -102,7 +102,7 @@ class BaseCommand {
         for (const def of cmdDefs) {
           if (def.description) {
             const desc = def.description.trim().split('\n')[0]
-            const shortcuts = def.short ? `-${def.short}|` : ''
+            const shortcuts = def.short ? `-${def.short}` : ''
             const aliases = (def.alias || []).map(v => `--${v}`).join('|')
             const mainFlag = `--${def.key}`
             const flagName = [shortcuts, mainFlag, aliases].filter(Boolean).join('|')