[Bug sanitizer/64706] -fsanitize=vptr is not documented

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64706

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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  Attachment #34513|0                           |1
        is obsolete|                            |

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 34514
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34514&action=edit
gcc5-pr64706.patch

Small wording fixes from Jonathan.