check: fix incorrect interrupt detection

Currently "Interrupted!" string always appeared in check.log because
flag cleared at very end after summary was dumped already.  It looks
very strange, but it was broken from very beginning 27fba05e
(2001-01-15)

- update interrupt flag at the end of a section loop, but before _wrapup
- dump 'Interrupted' to stdout

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>

check

@@ -405,7 +405,7 @@ _wrapup()
 			echo "Ran:$try" >>$check.log
 		fi
 
-		$interrupt && echo "Interrupted!" >>$check.log
+		$interrupt && echo "Interrupted!" | tee -a $check.log
 
 		if [ ! -z "$notrun" ]; then
 			if [ $brief_test_summary == "false" ]; then
@@ -755,7 +755,9 @@ for section in $HOST_OPTIONS_SECTIONS; do
 
 	    seq="after_$seqnum"
 	done
+	interrupt=false
 	_wrapup
+	interrupt=true
 	echo
 
 	_test_unmount 2> /dev/null