Fix T87777: Fix typo in Prefs Scripts Dir tooltip

Correction to Prefs tooltip mention of 'add-ons' folder in Scripts Dir.

Differential Revision: https://developer.blender.org/D11064

Reviewed by Harley Acheson

source/blender/makesrna/intern/rna_userdef.c

@@ -6160,7 +6160,7 @@ static void rna_def_userdef_filepaths(BlenderRNA *brna)
       prop,
       "Python Scripts Directory",
       "Alternate script path, matching the default layout with subdirectories: "
-      "startup, add-ons and modules (requires restart)");
+      "startup, addons, modules, and presets (requires restart)");
   /* TODO, editing should reset sys.path! */
 
   prop = RNA_def_property(srna, "i18n_branches_directory", PROP_STRING, PROP_DIRPATH);