Return 0xff from setlogmask() instead of falling off the end of

the int-returning function without returning a value.  The 0xff
value is taken from the C library and is the default log mask.

distrib/utils/libhack/syslog.c

@@ -16,6 +16,7 @@ closelog(void)
 int
 setlogmask(int mask)
 {
+	return 0xff;
 }
 
 __strong_alias(_syslog, syslog)