change description about platform specific section

intl/uconv/src/unixcharset.properties

@@ -27,14 +27,16 @@
 ##   hpux, unixware, and sco use Shift_JIS, so we put
 ##      locale.all.japanese=EUC-JP
 ##   in the all platform section and put
-##      locale.hpux.japanese=Shift_JIS
-##      locale.unixware.japanese=Shift_JIS
-##      locale.sco.japanese=Shift_JIS
+##      locale.HP-UXB.10.japanese=Shift_JIS
+##      locale.SCOOS5.0.japanese=Shift_JIS
 ##   in the platform specific section
 ## 
-locale.hpux.japanese=Shift_JIS
-locale.unixware.japanese=Shift_JIS
-locale.sco.japanese=Shift_JIS
+## The key is "locale." + OSTYPE + "." + locale name
+## Read mozilla/config/config.mk to find out the correct OSTYPE
+##   for your system.
+##
+locale.HP-UXB.10.japanese=Shift_JIS
+locale.SCOOS5.0.japanese=Shift_JIS
 ##
 ## All platform section
 ##   Put the general locale to charset mapping here. 
@@ -42,6 +44,7 @@ locale.sco.japanese=Shift_JIS
 ##   charset, put the least common one in the platform specific section
 ##   This section have lower priority than the platform specific section
 ##
+## The key is "locale.all." + locale name
 locale.all.C=ISO-8859-1
 locale.all.En_JP.IBM-932=Shift_JIS
 locale.all.En_JP=Shift_JIS