handle gcc warnings around unused values and set bubt unread values
handle gcc warnings around unused values and set bubt unread values

irasnyd/ngx_aws_auth,irasnyd/ngx_aws_auth,trunkclub/ngx_aws_auth,trunkclub/ngx_aws_auth,passion4code/ngx_aws_auth,anomalizer/ngx_aws_auth,DreamLab/ngx_aws_auth,passion4code/ngx_aws_auth,anomalizer/ngx_aws_auth,DreamLab/ngx_aws_auth