[Bug c++/90466] New: Documentation: -Wconversion-extra not documented

[gennaro.prota+gccbugzilla at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90466

            Bug ID: 90466
           Summary: Documentation: -Wconversion-extra not documented
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gennaro.prota+gccbugzilla at gmail dot com
  Target Milestone: ---

The option -Wconversion-extra, appearing in the output of

  g++ -Q --help=warnings | fgrep conversion

is not documented. Is this intentional?