Replace remaining system("touch") with touch() (by Metalshark)

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>

Changelog

@@ -1,5 +1,6 @@
 
 0.2 ()
+	- replace system("touch") with touch() in finit-mod (Metalshark)
 
 
 0.1 (20081214)

finit-mod.c

@@ -287,7 +287,7 @@ void shutdown(int sig)
 {
 	int fd;
 
-	system("/usr/bin/touch /tmp/shutdown");
+	touch("/tmp/shutdown");
 
 	kill(-1, SIGTERM);