[ELF] Enforce double-dash form for --warn-backrefs-exclude
authorFangrui Song <maskray@google.com>
Wed, 8 Jul 2020 18:43:48 +0000 (11:43 -0700)
committerFangrui Song <maskray@google.com>
Wed, 8 Jul 2020 18:45:01 +0000 (11:45 -0700)
commitf86d96a96441eb9f83c2dedb0ba5d7e4dc8dc089
tree6bf010563f32707898926635c0534910ab98eec5
parent26b0a23084f049f4084fc9f1d599ade66e4af185
[ELF] Enforce double-dash form for --warn-backrefs-exclude

This is an LLD-specific option. We have enforced double-dash forms for
other options (reduce collision with short options) but missed this one.
lld/ELF/Options.td