Fix Handbook KDE section /usr/local/kde4 prefix to /usr/local
A post on the FreeBSD forums points out that /usr/local/kde4/bin/startkde is still in the Handbook [1]. This changed to /usr/local/bin/startkde almost a year ago in SVN r344893 [2]. Patch attached to resolve the issue.
[1] https://forums.freebsd.org/threads/error-on-kdeadmin-on-installing-kde-get-kde-to-start-with-startx-and-exit.50317/
[2] https://svnweb.freebsd.org/ports/head/Mk/bsd.kde4.mk?r1=344893&r2=344892&pathrev=344893