Clarify what killing a session means.

Author: devkev

source/includes/note-killSessions.rst

@@ -0,0 +1,7 @@
+.. note::
+
+   Killing a session kills any in-progress operations in the
+   session, and closes any open cursors associated with these
+   operations.  The killed session may still be listed as a
+   current session, and future operations may use the killed
+   session.

source/reference/command/killAllSessions.txt

@@ -20,6 +20,8 @@ Definition
    The :dbcommand:`killAllSessions` command kills all sessions for the
    specified users.
 
+   .. include:: /includes/note-killSessions.rst
+
    .. code-block:: javascript
 
       { killAllSessions: [ { user: <user>, db: <dbname> }, ... ]  }

source/reference/command/killAllSessionsByPattern.txt

@@ -20,6 +20,8 @@ Definition
    The :dbcommand:`killAllSessionsByPattern` command kills all sessions
    that match any of the specified patterns:
 
+   .. include:: /includes/note-killSessions.rst
+
    .. code-block:: javascript
 
       { killAllSessionsByPattern: [ <pattern>, ... ]  }

source/reference/command/killSessions.txt

@@ -21,11 +21,7 @@ Definition
    If access control is enabled, the command only kills the sessions
    owned by the user.
 
-   .. note::
-
-      Killing a session also kills any in-progress operations in the
-      session and closes any open cursors associated with these
-      operations.
+   .. include:: /includes/note-killSessions.rst
 
    :dbcommand:`killSessions` has the following syntax: