aremmell / libsir / 1973 / 1

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Pull #491

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Avoid a warning in the example program under new Clang-CL

example/example.c(123,45): warning: format specifies type 'unsigned int' but the argument has type 'int', which differs in signedness [-Wformat-signedness]
  122 |                     " (IPv4: %s) on port %u and listening for connections...",
      |                                          ~~
      |                                          %d
  123 |                     "eth0", "120.22.140.8", 5500);
      |                                             ^~~~
example/example.c(135,37): warning: format specifies type 'unsigned int' but the argument has type 'int', which differs in signedness [-Wformat-signedness]
  134 |     (void)sir_notice("Client at %s:%u (username: %s) failed 5 authentication attempts!",
      |                                    ~~
      |                                    %d
  135 |                      "210.10.54.3", 43113, "bob");
      |                                     ^~~~~
2 warnings generated.

Explicity pass unsigned values

Signed-off-by: Jeffrey H. Johnson <johnsonjh.dev@gmail.com>

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