libsepol/cil: free bitmaps in cil_level_equals()

cil_level_equals() builds two bitmap and compare them but does not
destroy them before returning the result.

This memory leak has been found by running clang's Address Sanitizer on
a set of policies generated by American Fuzzy Lop.

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
1 file changed