BUG/MINOR: chunks: do not store -1 into chunk_printf() in case of error

Since commit 843b7cb ("MEDIUM: chunks: make the chunk struct's fields
match the buffer struct") a chunk length is unsigned so we can't reliably
store -1 and check for negative values in the caller. Only one such
location was found in proto_http's http-request auth rules (which cannot
realistically fail).

No backport is needed.
2 files changed