fix(reqlog): only use .{number} for request logging when there's multiple values for a header

request_logger.go

@@ -56,7 +56,13 @@ func RequestLogger(l zerolog.Logger, requestHeaders, responseHeaders bool) fiber
 			if responseHeaders {
 				for k, v := range r.ResponseHeaders {
 					for i, vv := range v {
-						l2 = l2.Str(fmt.Sprintf("response.headers.%s.%d", k, i), vv)
+						attr := fmt.Sprintf("response.headers.%s", k)
+
+						if len(v) != 1 {
+							attr = fmt.Sprintf("%s.%d", attr, i)
+						}
+
+						l2 = l2.Str(attr, vv)
 					}
 				}
 			}