[Bug sanitizer/114494] false-positive with -O2 -Wstringop-overflow=2 -fsanitize=address

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114494

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note the minimized testcase seems to be a real issue. hlen can either be 1 (the
only value that works) or more than 1.