[Bug 273196] xargs(1) fails for a command line shorter than 200 chars: xargs: command line cannot be assembled, too long

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273196

            Bug ID: 273196
           Summary: xargs(1) fails for a command line shorter than 200
                    chars: xargs: command line cannot be assembled, too
                    long
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: ports-bugs@FreeBSD.org
          Reporter: yuri@freebsd.org

This script:
> echo aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | \
> xargs -I '{}' echo "'{}' xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx '{}'"

fails:
> xargs: command line cannot be assembled, too long

The resulting command line has only 3 arguments: 80, 100, and 80 characters.
This is quite a short command line, but xargs(1) fails for some reason.

xargs(1) should be able to assemble commands as long as they can be executed,
which is much longer than the above example.


FreeBSD 13.2

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