syslog_putc() have a lot of duplicate logic with syslog_write(). remove syslog_putc() and reuse syslog_write() to simplify syslog printing. Signed-off-by: chao an <anchao@lixiang.com>
Migrate https://cwiki.apache.org/confluence/display/NUTTX/Logging+to+a+RAM+Buffer to official wiki Signed-off-by: Ludovic Vanasse <ludovicvanasse@gmail.com>