Bug#727388: id-utils: run dh-autoreconf to update config.{sub,guess} and {libtool,aclocal}.m4

[Edmund Grimley Evans]

I was able to build this package on arm64 after adding
"dh_autoreconf" just before the "./configure" line, and
"dh_autoreconf_clean" just before "dh_clean", in debian/rules.

One must presumably also add "dh-autoreconf" to the
Build-Depends.