fixed the filter_finalize_hang patch for a regression in the image filter.

patches/nginx-1.0.15-filter_finalize_hang.patch

@@ -1,10 +1,10 @@
 --- nginx-1.0.15/src/http/ngx_http_request.c	2012-03-05 20:49:32.000000000 +0800
-+++ nginx-1.0.15-patched/src/http/ngx_http_request.c	2012-05-11 20:50:01.478111234 +0800
++++ nginx-1.0.15-patched/src/http/ngx_http_request.c	2012-05-22 20:46:57.000000000 +0800
-@@ -1900,6 +1900,7 @@
+@@ -1900,7 +1900,6 @@
  
      if (rc == NGX_OK && r->filter_finalize) {
          c->error = 1;
-+        ngx_http_finalize_connection(r);
+-        return;
-         return;
      }
  
+     if (rc == NGX_DECLINED) {