[Bug c/61328] valgrind finds problem in find_bswap_or_nop_1

[thomas.preudhomme at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61328

--- Comment #1 from Thomas Preud'homme <thomas.preudhomme at arm dot com> ---
*facepalm*

Yes indeed. Does this qualify for an obvious fix as per commiting rules?