Restore pre-rcNG behaviour:

SIGINT (Ctrl-c) kills the current script
SIGQUIT (Ctrl-\) kills /etc/rc (dropping you into single-user)

Prodded by:	harti

etc/rc

@@ -41,10 +41,10 @@
 stty status '^T'
 
 # Set shell to ignore SIGINT (2), but not children;
-# shell catches SIGQUIT (3) and returns to single user after fsck.
+# shell catches SIGQUIT (3) and returns to single user.
 #
 trap : 2
-trap : 3	# shouldn't be needed
+trap "echo 'Boot interrupted'; exit 1" 3
 
 HOME=/
 PATH=/sbin:/bin:/usr/sbin:/usr/bin

etc/rc.subr

@@ -814,8 +814,6 @@ run_rc_script()
 		err 3 'USAGE: run_rc_script file arg'
 	fi
 
-	trap "echo 'Reboot interrupted'; exit 1" 3
-
 	unset	name command command_args command_interpreter \
 		extra_commands pidfile procname \
 		rcvar required_dirs required_files required_vars
@@ -833,7 +831,8 @@ run_rc_script()
 			if [ -n "$rc_fast_and_loose" ]; then
 				set $_arg ; . $_file
 			else
-				( trap "echo 'Reboot interrupted'; exit 1" 3
+				( trap "echo Script $_file interrupted; kill -QUIT $$" 3
+				  trap "echo Script $_file interrupted; exit 1" 2
 				  set $_arg ; . $_file )
 			fi
 		fi