/usr/include/lwres/string.h should be added to base/{head,stable/10}/ObsoleteFiles.inc, otherwise make delete-old complains about not being able to remove the /usr/include/lwres directory.
A commit references this bug: Author: brueffer Date: Wed Jul 1 15:54:14 UTC 2015 New revision: 285010 URL: https://svnweb.freebsd.org/changeset/base/285010 Log: Add one more file missed in the BIND-removal entries. PR: 196515 Submitted by: Trond Endrestol MFC after: 1 week Changes: head/ObsoleteFiles.inc
Fixed in HEAD, I'll merge the change to the STABLE branches soon. Thanks for the submission and sorry for the delay!
A commit references this bug: Author: brueffer Date: Mon Jul 13 12:19:02 UTC 2015 New revision: 285450 URL: https://svnweb.freebsd.org/changeset/base/285450 Log: MFC: r285010 Add one more file missed in the BIND-removal entries. PR: 196515 Submitted by: Trond Endrestol Approved by: re (gjb) Changes: _U stable/10/ stable/10/ObsoleteFiles.inc
Merge done. Thanks again!