Index: ruby.c
===================================================================
--- ruby.c	(revision 21717)
+++ ruby.c	(working copy)
@@ -149,6 +149,7 @@
 	"-s              enable some switch parsing for switches after script name",
 	"-S              look for the script using PATH environment variable",
 	"-T[level]       turn on tainting checks",
+	"-U              specify utf-8 as default_internal",
 	"-v              print version number, then turn on verbose mode",
 	"-w              turn warnings on for your script",
 	"-W[level]       set warning level; 0=silence, 1=medium, 2=verbose (default for level)",