Update install.php

Author: Till Brehm

install/install.php

@@ -617,7 +617,7 @@
 if($conf['saslauthd']['installed'] == true && $conf['saslauthd']['init_script'] != '') system($inst->getinitcommand($conf['saslauthd']['init_script'], 'restart'));
 if($conf['amavis']['installed'] == true && $conf['amavis']['init_script'] != '') system($inst->getinitcommand($conf['amavis']['init_script'], 'restart'));
 if($conf['rspamd']['installed'] == true && $conf['rspamd']['init_script'] != '') system($inst->getinitcommand($conf['rspamd']['init_script'], 'restart'));
-if($conf['clamav']['installed'] == true && $conf['clamav']['init_script'] != '') system($inst->getinitcommand($conf['clamav']['init_script'], 'restart'));
+if($conf['clamav']['installed'] == true && $conf['clamav']['init_script'] != '' && $conf['amavis']['installed'] == true) system($inst->getinitcommand($conf['clamav']['init_script'], 'restart'));
 if($conf['courier']['installed'] == true){
 	if($conf['courier']['courier-authdaemon'] != '') system($inst->getinitcommand($conf['courier']['courier-authdaemon'], 'restart'));
 	if($conf['courier']['courier-imap'] != '') system($inst->getinitcommand($conf['courier']['courier-imap'], 'restart'));