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Melvin Vermeeren authored
If the log format is not enclosed in 'single quotes' the spaces inside the log format are ignored (syntactical whitespace). The "double quotes" are then interpreted, meaning the spaces inside "double quotes" work but the quotes themselves are not actually output to the log files. See also the "log_format combined" predefinition in nginx docs. https://nginx.org/en/docs/http/ngx_http_log_module.html#log_format