What is the URL of the page with the issue?

https://pkg.go.dev/fmt@go1.23.3

What is your user agent?

Chrome/130.0.0.0

Screenshot

What did you do?

If you see the screenshot, you will find these two line.

%x hexadecimal notation (with decimal power of two exponent), e.g. -0x1.23abcp+20
%X upper-case hexadecimal notation, e.g. -0X1.23ABCP+20

if you see e.g -0x1.23abcp+20 , you will find out this is not a proper hexadecimal notation. it should be, d in place of p same for uppercase

%x hexadecimal notation (with decimal power of two exponent), e.g. -0x1.23abcd+20
%X upper-case hexadecimal notation, e.g. -0X1.23ABCD+20

What did you see happen?

If you see the screenshot, you will find these two line.

%x hexadecimal notation (with decimal power of two exponent), e.g. -0x1.23abcp+20
%X upper-case hexadecimal notation, e.g. -0X1.23ABCP+20

there is p in hexadecimal notation, which is wrong notation.

What did you expect to see?

It should be d insted of p, or any other valid hexa character

%x hexadecimal notation (with decimal power of two exponent), e.g. -0x1.23abcd+20
%X upper-case hexadecimal notation, e.g. -0X1.23ABCD+20