[PATCH v4 3/5] ldbl-opt: Add err, errx, verr, verrx, warn, warnx, vwarn, and vwarnx (bug 23984)

[Joseph Myers]

OK, although this is missing libnldbl_nonshared.a additions, and unlike in 
patch 1 adding those would not require any further exports from libc.so.

-- 
Joseph S. Myers
joseph@codesourcery.com