Fix filtering bug in ssl-opt.sh

If the first test to be run according to -e and -f options is just after a
test that would have been skipped due to a require_xxx instruction, then it
would be incorrectly skipped.
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 5e4aeac..03edf8f 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -219,6 +219,7 @@
 
     if echo "$NAME" | grep "$FILTER" | grep -v "$EXCLUDE" >/dev/null; then :
     else
+        SKIP_NEXT="NO"
         return
     fi