defining empty defaults for syslog_ log targets for common (Thanks @chtheis, partial fix to #682)

config/paths-common.conf

@@ -7,12 +7,17 @@ after  = paths-overrides.local
 
 [DEFAULT]
 
-
-
 sshd_log = %(syslog_authpriv)s
 
 dropbear_log = %(syslog_authpriv)s
 
+# There is no sensible generic defaults for syslog log targets, thus
+# leaving them empty here so that no errors while parsing/interpollatin configs
+syslog_daemon =
+syslog_ftp =
+syslog_local0 =
+syslog_mail_warn =
+syslog_user =
 
 # from /etc/audit/auditd.conf
 auditd_log = /var/log/audit/audit.log
@@ -31,7 +36,7 @@ lighttpd_error_log = /var/log/lighttpd/error.log
 suhosin_log = %(syslog_user)s %(lighttpd_error_log)s
 
 # defaults to ftp or local2 if ftp doesn't exist
-proftpd_log = %(syslog_ftp)s 
+proftpd_log = %(syslog_ftp)s
 
 # http://svnweb.freebsd.org/ports/head/ftp/proftpd/files/patch-src_proftpd.8.in?view=markup
 # defaults to ftp but can be overwritten.