https://sourceware.org/bugzilla/show_bug.cgi?id=27487 binutils will have --format=just-symbols/-j as well. Arbitrarily prefer `-j` to `--format=sysv`. Previously `--format=sysv -j` prints in the sysv format while `-j` takes precedence over other formats. Differential Revision: https://reviews.llvm.org/D98569