freebsd-update: add a progress report for the "fetching files..."

After patching step is done.

PR:		232857
Submitted by:	mat@
MFC after:	a week

usr.sbin/freebsd-update/freebsd-update.sh

@@ -1888,7 +1888,7 @@ fetch_files () {
 		echo ${NDEBUG} "files... "
 		lam -s "${FETCHDIR}/f/" - -s ".gz" < filelist |
 		    xargs ${XARGST} ${PHTTPGET} ${SERVERNAME}	\
-		    2>${QUIETREDIR}
+			2>${STATSREDIR} | fetch_progress
 
 		while read Y; do
 			if ! [ -f ${Y}.gz ]; then