coreutils: Reporting bugs or incorrect results

 
 30.4.2 Reporting bugs or incorrect results
 ------------------------------------------
 
 If you suspect a bug in GNU coreutils’ version sort (i.e., in the output
 of ‘ls -v’ or ‘sort -V’), please first check the following:
 
   1. Is the result consistent with Debian’s own ordering (using ‘dpkg’,
      see ⇒Comparing two strings using Debian's algorithm) ?  If
      it is, then this is not a bug - please do not report it.
 
   2. If the result differs from Debian’s, is it explained by one of the
      sections in ⇒Differences from the official Debian Algorithm?
      If it is, then this is not a bug - please do not report it.
 
   3. If you have a question about specific ordering which is not
      explained here, please write to <coreutils@gnu.org>, and provide a
      concise example that will help us diagnose the issue.
 
   4. If you still suspect a bug which is not explained by the above,
      please write to <bug-coreutils@gnu.org> with a concrete example of
      the suspected incorrect output, with details on why you think it is
      incorrect.