Upgrade to pcre2-10.33 (2019-04-16).

Test: treehugger
Change-Id: I4c9d87617cb7ede4627974ffd530666eb0123121
diff --git a/dist2/RunTest b/dist2/RunTest
index 39f04d4..6715d15 100755
--- a/dist2/RunTest
+++ b/dist2/RunTest
@@ -319,7 +319,7 @@
 # If it is possible to set the system stack size and -bigstack was given,
 # set up a large stack.
 
-$sim ./pcre2test -S 1 /dev/null /dev/null
+$sim ./pcre2test -S 64 /dev/null /dev/null
 if [ $? -eq 0 -a "$bigstack" != "" ] ; then
   setstack="-S 64"
 else