Resolve #3408488 "Make unknownpathexcluder accept"

Closes #3408488

package_manager/config/schema/package_manager.schema.yml

@@ -25,11 +25,6 @@ package_manager.settings:
       sequence:
         type: package_name
         label: 'Trusted composer plugin'
-    # If the project root and web root are different, unrecognized files or directories
-    # in the project root are excluded from stage operations by default. This can be
-    # explicitly bypassed for sites that have additional files or directories in the
-    # project root that need to be included in stage operations.
-    # @see \Drupal\package_manager\PathExcluder\UnknownPathExcluder
     include_unknown_files:
       type: boolean
-      label: 'Include unrecognized files in stage operations'
+      label: 'Include unrecognized files and directories in staging operations'