[Bug go/86331] the gccgo's "go" tool looks like failing to invoke any sub go command

[stephen.kim at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86331

--- Comment #4 from Stephen Kim <stephen.kim at oracle dot com> ---
Just in case, this system also includes Google's gc. With the gc, everything
that fails with gccgo like this seems all fine. Thus, I think this problem
might be in the top-level "go tool," which parses the command line and invokes
the sub tools.