bug#39168: 27.0.50; Error on command line flags with use dump-file flag with other flags

[Yuan Fu]

> On Apr 24, 2020, at 2:05 PM, Eli Zaretskii <eliz@gnu.org> wrote:
> 
>> From: Yuan Fu <ykf5041@psu.edu>
>> Date: Fri, 24 Apr 2020 13:45:51 -0400
>> Cc: 39168@debbugs.gnu.org
>> 
>>> Do you have follow-up questions?
>> 
>> Ah, yes. How can I check if Emacs is restored from a portable dump file?
> 
> One way is to use the function pdumper-stats.

Thinking more about it, maybe I shouldn’t check if Emacs is restored from a 
portable dump file, since having “—dump-file” in argv should mean that Emacs is 
restored from a portable dump file anyway.

Yuan