[Bug sanitizer/89010] New: Update URLs in libsanitizer/README.gcc

[jg at jguk dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89010

            Bug ID: 89010
           Summary: Update URLs in libsanitizer/README.gcc
           Product: gcc
           Version: 8.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jg at jguk dot org
                CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
                    jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at gcc dot gnu.org
  Target Milestone: ---

trunk/libsanitizer/README.gcc
URLs are out of date and weren't https.
Attaching patch and ChangeLog.