travis-ci: Add dependencies to run 'perl -wc'

.travis.yml

@@ -11,6 +11,7 @@ install:
   - sudo apt-get install -qq --no-install-recommends perl autotools-dev libdbi-dev libldap2-dev libpq-dev libmysqlclient-dev libfreeradius-client-dev libkrb5-dev libnet-snmp-perl procps
   - sudo apt-get install -qq --no-install-recommends libdbi0-dev libdbd-sqlite3 libssl-dev dnsutils snmp-mibs-downloader libsnmp-perl snmpd
   - sudo apt-get install -qq --no-install-recommends fping snmp netcat smbclient fping pure-ftpd apache2 postfix libhttp-daemon-ssl-perl
+  - sudo apt-get install -qq --no-install-recommends libdbd-sybase-perl libnet-dns-perl
   - sudo apt-get install -qq --no-install-recommends slapd ldap-utils
   - sudo apt-get install -qq --no-install-recommends autoconf automake
   - sudo apt-get install -qq --no-install-recommends faketime