start-stop-daemon: open syslog

The stop schedule code calls syslog, so we need to open a syslog
connection so the process name will get properly logged on musl, and we
can ensure the pid gets logged and the right facility is used.

src/start-stop-daemon/start-stop-daemon.c

@@ -39,6 +39,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <syslog.h>
 #include <sys/ioctl.h>
 #include <sys/resource.h>
 #include <sys/stat.h>
@@ -359,6 +360,8 @@ int main(int argc, char **argv)
 	signal_setup(SIGQUIT, handle_signal);
 	signal_setup(SIGTERM, handle_signal);
 
+	openlog(applet, LOG_PID, LOG_DAEMON);
+
 	if ((tmp = getenv("SSD_NICELEVEL")))
 		if (sscanf(tmp, "%d", &nicelevel) != 1)
 			eerror("%s: invalid nice level `%s' (SSD_NICELEVEL)",