Merge branch 'pr/1363'

* pr/1363:
  use unknown exit code for help/version in plugins-root as well
  use unknown exit code for help/version in plugins
  change exit code to unknown on help and version info
  use exit code 3 for version and help

1 files changed, 7 insertions, 2 deletions

diff --git a/doc/developer-guidelines.sgml b/doc/developer-guidelines.sgml
index d934028..228d3fa 100644
--- a/doc/developer-guidelines.sgml
+++ b/doc/developer-guidelines.sgml
@@ -194,13 +194,15 @@
                                         <row>
                                                 <entry align="center"><para>3</para></entry>
                                                 <entry valign="middle"><para>Unknown</para></entry>
-                                                <entry><para>Invalid command line arguments were supplied to the 
+                                                <entry><para>Invalid command line arguments were supplied to the
                                                 plugin or low-level failures internal to the plugin (such as unable to fork,
                                                 or open a tcp socket) that prevent it from performing the specified
                                                 operation. Higher-level errors (such as name resolution errors,
                                                 socket timeouts, etc) are outside of the control of plugins and should
                                                 generally NOT be reported as UNKNOWN states.
-                                                </para></entry>
+                                                </para>
+                                                <para>The --help or --version output should also result in Unknown state.</para>
+                                                </entry>
                                         </row>
                                 </tbody>
                         </tgroup>
@@ -610,6 +612,9 @@
                 <para>The option -v or --verbose should be present in all plugins.
                 The user should be allowed to specify -v multiple times to increase
                 the verbosity level, as described in <xref linkend="verboselevels">.</para>
+
+                The exit code for version information or help should be UNKNOWN
+                (3).</para>
     </section>
 
     <section>