[PATCH] xfstests: fix RESULT_BASE typo in check script

[Eric Sandeen <sandeen@xxxxxxxxxxx>]

RESULT_BASE is what's set & tested, but RESULTS_BASE was
being used in an error message.

Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
---

diff --git a/check b/check
index 268417c..a384cb2 100755
--- a/check
+++ b/check
@@ -358,7 +358,7 @@ trap "_wrapup; exit \$status" 0 1 2 3 15
 
 mkdir -p $RESULT_BASE
 if [ ! -d $RESULT_BASE ]; then
-       echo "failed to create results directory $RESULTS_BASE"
+       echo "failed to create results directory $RESULT_BASE"
        exit 1;
 fi