[lld] r285824 - [ELF] - Allow "-Ttext xxx", "-Tbss xxx", "-Tdata bss" commandline.

[Ed Maste via llvm-commits]

>> Please use S instead of Separate because we want to accept both -Tbss and
>> --Tbss.
>
> Hmm, I was sure ld/gold accepts single "-" only. Seems I was mistaken.

I believe ld.bfd accepts either one or two dashes for all
multiple-letter options, except that options starting with 'o' require
two.