usage of the libdep plugin of LD

[Nick Clifton]

Hi Marco,

> I am sorry I was reading an online version of the man page of LD which does not include the -plugin switch (I guess the page is outdated).

It does - but not in the section about plugins...

> (Hopefully a mention to -plugin will also be added to the online docs https://sourceware.org/binutils/docs-2.40/ld/Plugins.html)

I have updated the documentation source file (ld/ld.texi) so that the
plugin section of the document now mentions the command line option.

This will not affect the online documentation right away however - that
will happen with the next release.

Cheers
   Nick