[Fix]: minor fixes

[douxxtech]

Fixed small issues that did not inpact the functionment, such as a double rel in program.asm and a replacement issue on a variable declaration

[github-actions]

START + GET /: 167 syscalls
Fastest: 0.000016s (clock_gettime)
Slowest: 0.899696s (accept)

threads: 4 (auto), conns: 50, duration: 20s

[wrk]
Running 20s test @ http://127.0.0.1:8080/
  4 threads and 50 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency     5.09ms   11.55ms 423.44ms   99.38%
    Req/Sec     1.69k   391.65     2.72k    68.88%
  134641 requests in 20.05s, 204.29MB read
  Socket errors: connect 0, read 1039, write 0, timeout 0
Requests/sec:   6714.42
Transfer/sec:     10.19MB