Test update.

testdata/testoutput18

@@ -5,7 +5,7 @@
 #forbid_utf
 #pattern posix
 
-# Test invalid options
+# Test some invalid options
 
 /abc/auto_callout
 ** Ignored with POSIX interface: auto_callout
@@ -19,6 +19,12 @@
   abc\=partial_hard
 ** Ignored with POSIX interface: partial_hard
  0: abc
+  
+/a(())bc/parens_nest_limit=1
+** Ignored with POSIX interface: parens_nest_limit
+
+/abc/allow_surrogate_escapes,max_pattern_length=2
+** Ignored with POSIX interface: allow_surrogate_escapes max_pattern_length
 
 # Real tests