Checkmk Werk 13702: Agent controller: rename <tt>register-surrogate-pull</tt> to <tt>proxy-register</tt>

ID: 13702 Title: Agent controller: rename <tt>register-surrogate-pull</tt> to <tt>proxy-register</tt> Component: Checks & agents Level: 1 Class: Bug fix Version: 2.2.0i1 This change is only incompatible for user who scripted tools against the 2.1.0b1 version of the agent controller <tt>cmk-agent-ctl</tt>. The subcommand <tt>register-surrogate-pull</tt> has been renamed to <tt>proxy-register</tt>, as it is easier to type and to remember.