Upstream: fixed $upstream_status when upstream returns 503/504.

If proxy_next_upstream includes http_503/http_504, and upstream
returns 503/504, $upstream_status converted this to 502 for any
values except the last one.
1 file changed
tree: ed36c7e31da871173ccff52c21de9a1588526187
  1. auto/
  2. conf/
  3. contrib/
  4. docs/
  5. misc/
  6. src/
  7. .hgtags