feat(why): implement shorthands for "--dev" & "--prod" options (#3158)

close #3153

.changeset/giant-tigers-smoke.md

@@ -0,0 +1,5 @@
+---
+"@pnpm/plugin-commands-listing": patch
+---
+
+Implement shorthands for "--dev" & "--prod" options of `why` command

packages/plugin-commands-listing/src/why.ts

@@ -25,6 +25,11 @@ export const cliOptionsTypes = () => ({
   recursive: Boolean,
 })
 
+export const shorthands = {
+  D: '--dev',
+  P: '--production',
+}
+
 export const commandNames = ['why']
 
 export function help () {
@@ -63,10 +68,12 @@ For options that may be used with `-r`, see "pnpm help recursive"',
           {
             description: 'Display only the dependency graph for packages in `dependencies` and `optionalDependencies`',
             name: '--prod',
+            shortAlias: '-P',
           },
           {
             description: 'Display only the dependency graph for packages in `devDependencies`',
             name: '--dev',
+            shortAlias: '-D',
           },
           {
             description: "Don't display packages from `optionalDependencies`",