Raised simultaneous subrequest limit from 50 to 200.
It wasn't enforced for a long time, and there are reports that people
use up to 100 simultaneous subrequests now. As this is a safety limit
to prevent loops, it's raised accordingly.
diff --git a/src/http/ngx_http_request.h b/src/http/ngx_http_request.h
index 17c4b1e..70ca609 100644
--- a/src/http/ngx_http_request.h
+++ b/src/http/ngx_http_request.h
@@ -10,7 +10,7 @@
#define NGX_HTTP_MAX_URI_CHANGES 10
-#define NGX_HTTP_MAX_SUBREQUESTS 50
+#define NGX_HTTP_MAX_SUBREQUESTS 200
/* must be 2^n */
#define NGX_HTTP_LC_HEADER_LEN 32
