PATCH: Support "@file"

[Nick Clifton]

Hi Mark,

> Here's a (boring) patch that makes binutils programs support "@file"
> arguments by using the new expandargv function in libiberty.  Is this
> OK to apply?

Yes, please do.

> Where should documentation for the "@file" argument go?

In the linker doc file (ld/ld.texinfo), the binutils doc file 
(binutils/doc/binutils.texi) *and* the --help output of these programs. 
  (Submitting a separate patch to do this is acceptable).

Question: is there any reason why you did not update GAS to use this 
feature as well ?  What about gprof too ?

> Should I add
> it to the list of options for every program in the binutils manual?
> Or, add a section up front with common options, of which this will be
> the only one?  Or...?

Your choice.  If you create a "common options" section you could also 
put --version and --help in there, and maybe --verbose.  (Not sure if 
all commands accept it).

Cheers
   Nick