Describe the bug

When read from a file, and then use f.tell() get the location, it give wrong position under Windows.

Reproduction Steps

create a file,
file_pos.v

module main
import os

fn main() {
    mut file := os.open('./file_pos.v')!
    defer { file.close() }

        s1 := file.tell()!
        b1 := file.read_bytes(8)
        s2 := file.tell()!

        dump(s1)
        dump(s2)
        dump(b1)

}

run it under Linux/Windows, and give different results.

Expected Behavior

D:\v\bug\coff>.\file_pos.exe
[file_pos.v:12] s1: 0
[file_pos.v:13] s2: 8
[file_pos.v:14] b1: [109, 111, 100, 117, 108, 101, 32, 109]

Current Behavior

D:\v\bug\coff>.\file_pos.exe
[file_pos.v:12] s1: 0
[file_pos.v:13] s2: 262
[file_pos.v:14] b1: [109, 111, 100, 117, 108, 101, 32, 109]

Possible Solution

No response

Additional Information/Context

Linux version, give correct result:

$ ./file_pos
[file_pos.v:12] s1: 0
[file_pos.v:13] s2: 8
[file_pos.v:14] b1: [109, 111, 100, 117, 108, 101, 32, 109]

V version

V 0.4.10 c2e27ef.c2e27ef

Environment details (OS name and version, etc.)