Jean writes:

Hello,

under some circumstances the following small example prints lots of
garbage onto the console and into the syslog:

#include <syslog.h>
int main ()
{
        openlog("foo", LOG_CONS|LOG_NDELAY|LOG_PID|LOG_PERROR, LOG_DAEMON);
        syslog (LOG_WARNING, "mlock: %m");
        return 1;
}

The reason is, that sprintf returns with -1 and vsyslog dumps the
complete buffer onto stderr and the syslogd socket. The following
patch would fix the problem:

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