[luatex] using fea files in plain TeX

[Vafa Khalighi]

makes no difference

This is LuaTeX, Version beta-0.40.6-2009062514 (Web2C 2009)
(test.tex <luatex-fonts-merged.lua> <luatex-fonts.lua loaded in 0.017
seconds>
! LuaTeX error ...exmf/tex/luatex/luatex-fonts/luatex-fonts-merged.lua:1782:
ba
d argument #1 to 'lower' (string expected, got nil).
<to be read again>
                   \body
l.11 ...calt;featurefile=palatino.fea at 14pt\body

?
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