Summary:
This patch adds support for merged arguments (e.g. -SW == -S -W) for llvm-readelf.
No changes are intended for llvm-readobj. There are a few short flags (-sd, -sr, -st, -dt) that would conflict with grouped single letter flags, and having only some grouped flags might be confusing. So, allow merged flags for readelf compatibility, but force separate args for llvm-readobj. From what I can tell, these two-letter flags are only used with llvm-readobj, not llvm-readelf.
This fixes PR40064.
Reviewers: jhenderson, kristina, echristo, phosek
Reviewed By: jhenderson
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D56629
llvm-svn: 351205
Jordan Rupprecht