Added unit tests, documentation and function descriptions across the board. Increased cyclop complexity threshold to 15 which is a bit more sane than 10 and excluded _test.go files from linters.

internal/logging/accesslog.go

@@ -65,6 +65,9 @@ func clientKey(req *http.Request) string {
 	return host
 }
 
+// AccessLog wraps next, writing a line to logger for each request in the
+// Apache/nginx Common Log Format, or the Combined Log Format (which adds the
+// referer and user agent) if combined is true.
 func AccessLog(logger *log.Logger, combined bool, next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		start := time.Now()