Remove the additional dot in output of compat.sh

Signed-off-by: Yanray Wang <yanray.wang@arm.com>
diff --git a/tests/compat.sh b/tests/compat.sh
index 14d896b..81eaf0b 100755
--- a/tests/compat.sh
+++ b/tests/compat.sh
@@ -804,7 +804,8 @@
     TESTS=$(( $TESTS + 1 ))
     TITLE="${1%"${1#?}"}->${SERVER_NAME%"${SERVER_NAME#?}"}"
     TITLE="$TITLE $MODE,$VERIF $2"
-    printf "%s %.*s " "$TITLE" "$((72 - ${#TITLE}))" ........................................................................
+    DOTS72="........................................................................"
+    printf "%s %.*s " "$TITLE" "$((71 - ${#TITLE}))" "$DOTS72"
 
     # should we skip?
     if [ "X$SKIP_NEXT" = "XYES" ]; then