doc string of `local-variable-if-set-p'

[Masatake YAMATO]

Hi,

M-x descscribe-function `local-variable-if-set-p'
and I got *Help*:

    local-variable-if-set-p is a built-in function in `C source code'.
    (local-variable-if-set-p variable &optional buffer)

    Non-nil if variable will be local in buffer buffer if it is set there.
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    buffer defaults to the current buffer.

My english is poor but I guess something conjunction like `and' is need
between two if clauses. 

Masatake YAMATO