feat: add config dir help

See toolshed/organising#470

cli/run.go

@@ -54,7 +54,14 @@ func Run(version, commit string) {
 		// translators: `abra` binary name
 		Use: i18n.G("abra [cmd] [args] [flags]"),
 		// translators: Short description for `abra` binary
-		Short:   i18n.G("The Co-op Cloud command-line utility belt 🎩🐇"),
+		Short: i18n.G("The Co-op Cloud command-line utility belt 🎩🐇"),
+		// translators: Long description for `abra` binary. This needs to be
+		// translated in the same way as the Short description so that everything
+		// matches up
+		Long: i18n.G(`The Co-op Cloud command-line utility belt 🎩🐇
+
+Config:
+  $ABRA_DIR: %s`, config.ABRA_DIR),
 		Version: fmt.Sprintf("%s-%s", version, commit[:7]),
 		ValidArgs: []string{
 			// translators: `abra app` command for autocompletion