Correct a test failure now the XEmacs-specific Arabic charsets are gone.
etc/ChangeLog addition:
2008-08-10 Aidan Kehoe <kehoea@parhasard.net>
* HELLO: Add a coding cookie, now the UTF-8 sequences prevent the
file being recognised as ISO-2022-7 automatically.
tests/ChangeLog addition:
2008-08-10 Aidan Kehoe <kehoea@parhasard.net>
* automated/mule-tests.el (featurep): Update the list of character
sets in etc/HELLO to reflect that we've deleted the
XEmacs-specific Arabic character sets.