fixed snmp-uptime nagios plugins

docs/nagios/scripts/plugins/check_snmp_uptime

@@ -12,12 +12,12 @@ alarm($TIMEOUT);
 
 my $host = shift @ARGV;
 my $snmp_str = shift @ARGV;
-my ($community,$version,$user,$auth,$priv) = split(/;/,$snmp_str);
+my ($community,$version,$user,$auth,$priv) = split(/\:\:/,$snmp_str);
 
 my $snmp;
 $snmp->{version} = $version || '2';
 $snmp->{timeout} = 30;
-$snmp->{community} = $community || 'public';
+$snmp->{community} = $community || 'jmtc4321';
 $snmp->{user} = $user || 'public';
 $snmp->{auth} = $auth || 'sha1';
 $snmp->{priv} = $priv || 'aes';