More completely fixed the 0-key thing.

Unfortunately this degrades hash table lookup performance by
about 8%, which affects the streaming benchmark for googlemessage1
by about 5%.  We could get this back at the cost of some memory,
but it would be nice to avoid that.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/upbc.c b/src/upbc.c
index a636301..62f5afd 100644
--- a/src/upbc.c
+++ b/src/upbc.c
@@ -231,6 +231,7 @@ int main(int argc, char *argv[])
   free(defs);
   upb_string_unref(descriptor);
   upb_symtab_unref(s);
+  upb_symtab_unref(s2);
   fclose(h_const_file);
 
   return 0;