Fix parsing format to unsigned in FTP file stat

[mdsnins]

ext/standard/ftp_fopen_wrapper.c:837

n = sscanf(p, "%4d%2d%2d%2d%2d%2d", &tm.tm_year, &tm.tm_mon, &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec);

ext/ftp/ftp.c:1148

n = sscanf(ptr, "%4u%2u%2u%2u%2u%2u", &tm.tm_year, &tm.tm_mon, &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec);

Fix ftp_fopen_wrapper's format string to use identifier "%u"

[cmb69]

Thank you for the PR! However, it seems to me it should be the other way round, since POSIX specifies that the members of struct tm are of type int (and not unsigned). Current Windows headers also declare the members as int.

[mdsnins]

@cmb69 I understood. Then how about fixing ftp.c's unsigned one to signed one?

[cmb69]

Then how about fixing ftp.c's unsigned one to signed one?

Yes, I think that's the way to go. :)

[mdsnins]

I made a new commit to fix unsigned to signed. Thanks :)

[cmb69]

Thank you! This looks good to me.