simplify conditional for rootfs check

Author: Fuseteam

rorw

@@ -5,7 +5,7 @@ BEGIN {
 	ARGV[1]="/proc/mounts";
 }
 {
-	if ( $2 == "/" && $3 != "rootfs" ) {
+	if ( $2 == "/" ) {
 		print $4;
 	}
 }