The newer update-copyright.py fixes file encoding too, removing cr/lf
on binutils/bfdtest2.c and ld/testsuite/ld-cygwin/exe-export.exp, and
embedded cr in binutils/testsuite/binutils-all/ar.exp string match.
The result of running etc/update-copyright.py --this-year, fixing all
the files whose mode is changed by the script, plus a build with
--enable-maintainer-mode --enable-cgen-maint=yes, then checking
out */po/*.pot which we don't update frequently.
The copy of cgen was with commit d1dd5fcc38ead reverted as that commit
breaks building of bfp opcodes files.
listings such as gas version, passed options, and time stamp.
(listing_general_info): New function.
(print_options): New function.
(print_single_option): New function.
(print_timestamp): New function.
(MAX_DATELEN): Define.
(listing_print): Add call to listing_general_info.
* listing.h (LISTING_GENERAL): Define.
(listing_print): Add new parameter.
* as.c (show_usage): Print new switch.
(parse_args): Parse new switch.
(main): Pass command line on to listing_print.
* NEWS: Mention this new feature.
* doc/as.texinfo: Document the new sub-option.
* gas/all/gas.exp: Check the performance of the -ag command line
switch.
