Remove "allused" output; less interesting

Signed-off-by: Dan Mick <dan.mick@inktank.com>
Fix .so-adds-D code (must copy list to avoid changing NM_ARGS)

Signed-off-by: Dan Mick <dan.mick@inktank.com>
Fix demangled-sym wordsplitting: there aren't always two spaces

Instead, replace spaces inside (), split, reset ()

Signed-off-by: Dan Mick <dan.mick@inktank.com>
Add verbosity

Signed-off-by: Dan Mick <dan.mick@inktank.com>