[Bug 257650] top - -P option behaves as if none given when it is specified even number of times: leakage of implementation details

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=257650

            Bug ID: 257650
           Summary: top - -P option behaves as if none given when it is
                    specified even number of times: leakage of
                    implementation details
           Product: Base System
           Version: 13.0-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: parv.0zero9+freebsd@gmail.com

I personally find in ...

  top -P -P

... -P option canceling itself out rather surprising because this option is not
listed in the manual page, on FreeBSD 13-STABLE, as a toggle. Frankly any
option implemented as a toggle ought to be mentioned as such to avoid any
surprises.

"CosmicDJ" on #freebsd channel on LibreChat IRC found the implementation
details ...

  https://cgit.freebsd.org/src/tree/usr.bin/top/top.c#n455


There could to be a single statement (in a manual page) that an even number of
same option will behave as if that option was not given, along with the options
that statement would apply to.

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