cli: add "end" alias to "up", leave this node/subsection

I'm sorry, I'm just so used to this modus from the previous company.
The difference to 'exit', which is available on Cisco IOS, is that it
on the top-level config context does not exit/abort to admin-exec but
instead stops.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/klish-plugin-infix/xml/infix.xml

@@ -143,7 +143,7 @@
 <COMMAND name="exit" help="Exit">
   <ACTION sym="nav">pop</ACTION>
 </COMMAND>
-<COMMAND name="logout" help="Alias for exit">
+<COMMAND name="logout" help="Alias to exit">
   <ACTION sym="nav">pop</ACTION>
 </COMMAND>
 
@@ -393,6 +393,10 @@
   <ACTION sym="srp_up@sysrepo"/>
 </COMMAND>
 
+<COMMAND name="end" help="Alias to up, leave this subsection/node">
+  <ACTION sym="srp_up@sysrepo"/>
+</COMMAND>
+
 <COMMAND name="exit" help="Ascend to parent configuration node, or abort (from top)">
   <ACTION sym="srp_up@sysrepo"/>
   <ACTION sym="srp_reset@sysrepo" exec_on="fail" update_retcode="false"/>
@@ -420,7 +424,7 @@
   <ACTION sym="srp_del@sysrepo"/>
 </COMMAND>
 
-<COMMAND name="no" help="Alias for delete">
+<COMMAND name="no" help="Alias to delete">
   <PARAM name="path" ptype="/PLINE_DEL" max="100"/>
   <ACTION sym="srp_del@sysrepo"/>
 </COMMAND>