cause snmpget try try for 1 second less than the timeout (allowing plugin to force close if needed)

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@501 f882894a-f735-0410-b71e-b25c423dba1c

plugins/check_snmp.c

@@ -233,8 +233,9 @@ main (int argc, char **argv)
 		usage ("Incorrect arguments supplied\n");
 
 	/* create the command line to execute */
-	asprintf (&command_line, "%s -m %s -v %s %s %s:%s %s",
-	          PATH_TO_SNMPGET, miblist, proto, authpriv, server_address, port, oid);
+	asprintf (&command_line, "%s -t 1 -r %d -m %s -v %s %s %s:%s %s",
+	          PATH_TO_SNMPGET, timeout_interval - 1, miblist, proto,
+	          authpriv, server_address, port, oid);
 	if (verbose)
 		printf ("%s\n", command_line);