fixed small bug done->fi

rotate_bvecs

@@ -14,11 +14,11 @@ bvecs=$2
 if [ -f ${bvecs}_old ];then
     echo ""
     echo "Error: Found that ${bvecs}_old already exists"
-    echo "This probably means that you have run this script before."
+    echo "This probably means that you have run this script before. Be aware that this also means ${bvecs} have already been rotated!"
     echo "If you want to force this program to run, please remove the file ${bvecs}_old"
     echo ""
     exit 1
-done
+fi
 /bin/cp ${bvecs} ${bvecs}_old
 #/bin/rm -f ${bvecs}