--- a/nashorn/src/jdk/nashorn/internal/runtime/resources/Options.properties	Mon May 27 13:12:11 2013 +0200
+++ b/nashorn/src/jdk/nashorn/internal/runtime/resources/Options.properties	Mon May 27 20:41:34 2013 +0530
@@ -332,6 +332,15 @@
     type=TimeZone                              \
 }
 
+nashorn.option.locale = {                    \
+    name="--locale",                         \
+    short_name="-l",                         \
+    is_undocumented=true,                    \
+    params="<locale>",                       \
+    desc="Set Locale for script execution.", \
+    type=Locale                              \
+}
+
 nashorn.option.trace.callsites = {                                              \
     name="--trace-callsites",                                                   \
     short_name="-tcs",                                                          \