Errors upgrading 9,1-RELEASE to 9,3-RELEASE

[Mike Clarke]

The following messages appeared when I ran freebsd-update to upgrade 
fron 9,1-RELEASE to 9,3-RELEASE.

Is this any cause for concern?

Installing updates...install: ///usr/src/contrib/bind9/libtool.m4 
exists but is not a directory
install: ///usr/src/contrib/bind9/libtool.m4/libtool.m4: Not a 
directory
install: ///usr/src/contrib/bind9/libtool.m4/ltoptions.m4: Not a 
directory
install: ///usr/src/contrib/bind9/libtool.m4/ltsugar.m4: Not a 
directory
install: ///usr/src/contrib/bind9/libtool.m4/ltversion.m4: Not a 
directory

-- 
Mike Clarke