Gunzip: added missing ngx_http_clear_etag().
diff --git a/src/http/modules/ngx_http_gunzip_filter_module.c b/src/http/modules/ngx_http_gunzip_filter_module.c
index b73fe48..d4e41e4 100644
--- a/src/http/modules/ngx_http_gunzip_filter_module.c
+++ b/src/http/modules/ngx_http_gunzip_filter_module.c
@@ -165,6 +165,7 @@
 
     ngx_http_clear_content_length(r);
     ngx_http_clear_accept_ranges(r);
+    ngx_http_clear_etag(r);
 
     return ngx_http_next_header_filter(r);
 }