Again, bad search and replace -_-.

Signed-off-by: Garrett Cooper <yanegomi@gmail.com>
diff --git a/testscripts/ltp-aiodio.sh b/testscripts/ltp-aiodio.sh
index 50da0c8..103b291 100755
--- a/testscripts/ltp-aiodio.sh
+++ b/testscripts/ltp-aiodio.sh
@@ -11,7 +11,7 @@
 
 cd `dirname $0`
 export LTPROOT=${PWD}
-echo $LTPROOT | grep testscripts > /dev/nulll 2>&1
+echo $LTPROOT | grep testscripts > /dev/null 2>&1
 if [ $? -eq 0 ]; then
  cd ..
  export LTPROOT=${PWD}