Allow `body_length/1` to return `{error, badarg}` on a invalid header value. This is a possible error code from `parse_header/1`.
Allow `body_length/1` to return `{error, badarg}`
on a invalid header value. This is a possible
error code from `parse_header/1`.
linearregression/cowboyku,ferd/cowboyku,heroku/cowboyku