libsepol: use the number of elements in calloc first argument

When allocating an array with calloc(), the first argument usually is
the number of items and the second one the size of an item. Doing so
silences a warning reported by clang's static analyzer:

    kernel_to_cil.c:2050:14: warning: Call to 'calloc' has an allocation
    size of 0 bytes.
            cond_data = calloc(sizeof(struct cond_data), num);
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Nicolas Iooss <[email protected]>
1 file changed