[Mod-security-developers] input_filter use modsecurity_request_body_retrieve incorrectly

[T. L. O. <mwa...@gm...>]

As to the subject, the usage of function modsecurity_request_body_retrieve
in another function input_filter is incorrect.

If the return value of modsecurity_request_body_retrieve is 1, it means
there are more chunks left, so it should be called again until it doesn't
return 1.