Fix a few warnings on 64 bits windows compilation

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1881379 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/modules/ssl/ssl_engine_vars.c b/modules/ssl/ssl_engine_vars.c
index 0583481..2e5e069 100644
--- a/modules/ssl/ssl_engine_vars.c
+++ b/modules/ssl/ssl_engine_vars.c
@@ -673,7 +673,8 @@
 
 static const char *ssl_var_lookup_ssl_cert_san(apr_pool_t *p, X509 *xs, const char *var)
 {
-    int type, numlen;
+    int type;
+    apr_size_t numlen;
     const char *onf = NULL;
     apr_array_header_t *entries;