bug 159865

Should support ISO-2022-CN-EXT encoding
patch from ervin.yan@sun.com
r=ftang,sr=rbs,a=asa

intl/uconv/src/charsetalias.properties

@@ -63,6 +63,7 @@ iso-8859-15=ISO-8859-15
 iso-8859-16=ISO-8859-16
 iso-ir-111=ISO-IR-111
 iso-2022-cn=ISO-2022-CN
+iso-2022-cn-ext=ISO-2022-CN
 iso-2022-kr=ISO-2022-KR
 iso-2022-jp=ISO-2022-JP
 utf-32be=UTF-32BE