Bug in pcall? or not?

[Nick Gammon <nick@...>]

Is this a bug?

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mt = {}
mt.__index = mt
mt.test = function (a, b, c)
          print "test"
          end  -- function mt.test

t = {}
setmetatable (t, mt)

ok, result = pcall (t:test)  --> error: function arguments expected  
near `)'
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It works if I do:

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ok, result = pcall (t.test)  --> test
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- Nick