TT#22805 Depend on netcat-openbsd | netcat

We should not list a virtual package first, because we do not know what
will end up being installed. Select a modern implementation of netcat
and place it first.

Change-Id: I9d5a54fee12e4b53f07127f886d92f6253de1409

debian/control

@@ -23,7 +23,7 @@ Build-Depends: asciidoc,
                libsys-hostname-long-perl,
                libtemplate-perl,
                libyaml-libyaml-perl,
-               netcat,
+               netcat-openbsd | netcat,
                pkwalify,
                python3-pytest,
                xsltproc
@@ -51,7 +51,7 @@ Depends: etckeeper,
          libsys-hostname-long-perl,
          libtemplate-perl,
          libyaml-libyaml-perl,
-         netcat | netcat-traditional,
+         netcat-openbsd | netcat,
          ngcp-system-tools,
          pkwalify,
          psmisc,