unix/fatfs_port: Fix month offset in timestamp calculation.
@@ -5,7 +5,7 @@ DWORD get_fattime(void) {
time_t now = time(NULL);
struct tm *tm = localtime(&now);
return ((1900 + tm->tm_year - 1980) << 25)
- | (tm->tm_mon << 21)
+ | ((tm->tm_mon + 1) << 21)
| (tm->tm_mday << 16)
| (tm->tm_hour << 11)
| (tm->tm_min << 5)
