Bug#220043: errno warning message could use improvement

[sacrificial-spam-address@horizon.com]

Package: libc6
Version: 2.3.2.ds1-10

ld.so: Incorrectly built binary which accesses errno or h_errno directly.
ld.so: See /usr/share/doc/libc6/FAQ.gz.

The explanation is actually in /usr/share/doc/libc6/README.Debian.gz, and
it would be nice to actually print the name of the offending executable,
because it often arises deep in a script somewhere that is running many
executables.  (at least the argv[0], if not readlink("/proc/self/exe"))

Other than that, thanks for the workaround!