Add rrdtool to nice-to-have list for pro (e.g. for debugging the collectd stats).

debian/control

@@ -40,7 +40,7 @@ Description: Metapackage for Sipwise's NGCP platform
 
 Package: ngcp-nth-pro
 Architecture: all
-Depends: ${shlibs:Depends}, ${misc:Depends}, ifenslave, vlan, ngrep-sip, screen, strace, vim, tcpdump, perl-doc, iftop, ifrename, rsync, libtemplate-perl, host, mytop, less, irqbalance, lsof, telnet, snmp, sharutils
+Depends: ${shlibs:Depends}, ${misc:Depends}, ifenslave, vlan, ngrep-sip, screen, strace, vim, tcpdump, perl-doc, iftop, ifrename, rsync, libtemplate-perl, host, mytop, less, irqbalance, lsof, telnet, snmp, sharutils, rrdtool
 Description: Metapackage for Nice To Have tools in NGCP platforms
  This metapackage installs several nice to have tools in a NGCP
  sip:provider PRO platform.