Avoid ./ in zoneinfo entries in METALOG

Use of "find ." resulted in METALOG entries with an extra ./ -- e.g.,
./usr/share/zoneinfo/./America/Toronto.  Avoid this by using globbing
via "find *" instead.

Reviewed by:	brooks
Sponsored by:	DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D719

share/zoneinfo/Makefile

@@ -79,7 +79,7 @@ zoneinfo: yearistype ${TDATA}
 
 beforeinstall:
 	cd ${TZBUILDDIR} && \
-	    find . -type f -print -exec ${INSTALL} \
+	    find * -type f -print -exec ${INSTALL} \
 	    -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
 	    \{} ${DESTDIR}/usr/share/zoneinfo/\{} \;
 	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \