[Bug sanitizer/69840] two ASAN help nits

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69840

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Then we have to agree that this code breaks GNU output style.  Or it breaks
LLVM output style.  It is one or the other, I rather see a way to do this
dynamically of breaking up the lines (this was done in the past for GCC's
diagnostic so it definitely can be done).