Problems with upgrade form 11.3-p10 RELEASE to 11.3-p11 RELEASE

[Erwan David]

Hello,

As usual I did my upgrade through freebsd-update, when doing
freebsd-update install I got the error message :

Installing updates...install:
///usr/lib/debug/usr/sbin/local-unbound-anchor.debug: No such file or
directory
install: ///usr/lib/debug/usr/sbin/local-unbound-checkconf.debug: No
such file or directory
install: ///usr/lib/debug/usr/sbin/local-unbound-control.debug: No such
file or directory
install: ///usr/lib/debug/usr/sbin/local-unbound.debug: No such file or
directory
 done.

Then when my freebsd-update cron the following night gave the message :

The following files are affected by updates. No changes have
been downloaded, however, because the files have been modified
locally:
/var/db/mergemaster.mtree
The following files will be added as part of updating to
11.3-RELEASE-p11:
/usr/lib/debug/usr/sbin/local-unbound-anchor.debug
/usr/lib/debug/usr/sbin/local-unbound-checkconf.debug
/usr/lib/debug/usr/sbin/local-unbound-control.debug
/usr/lib/debug/usr/sbin/local-unbound.debug


What should I do ?