Change so that the appropriate hooks for windows and panes belong to

pane/window options rather than all being session options. This is
useful for example to create a pane that is automatically closed on some
condition. From Anindya Mukherjee.

tmux.1

@@ -3897,6 +3897,7 @@ hook and there are a number of hooks not associated with commands.
 .Pp
 Hooks are stored as array options, members of the array are executed in
 order when the hook is triggered.
+Like options different hooks may be global or belong to a session, window or pane.
 Hooks may be configured with the
 .Ic set-hook
 or
@@ -3989,8 +3990,8 @@ Run when a window is unlinked from a session.
 Hooks are managed with these commands:
 .Bl -tag -width Ds
 .It Xo Ic set-hook
-.Op Fl agRu
-.Op Fl t Ar target-session
+.Op Fl agpRuw
+.Op Fl t Ar target-pane
 .Ar hook-name
 .Ar command
 .Xc
@@ -4002,18 +4003,8 @@ unsets) hook
 .Ar hook-name
 to
 .Ar command .
-If
-.Fl g
-is given,
-.Em hook-name
-is added to the global list of hooks, otherwise it is added to the session
-hooks (for
-.Ar target-session
-with
-.Fl t ) .
-.Fl a
-appends to a hook.
-Like options, session hooks inherit from the global ones.
+The flags are the same as for
+.Ic set-option .
 .Pp
 With
 .Fl R ,
@@ -4021,12 +4012,12 @@ run
 .Ar hook-name
 immediately.
 .It Xo Ic show-hooks
-.Op Fl g
-.Op Fl t Ar target-session
+.Op Fl gpw
+.Op Fl t Ar target-pane
 .Xc
-Shows the global list of hooks with
-.Fl g ,
-otherwise the session hooks.
+Shows hooks.
+The flags are the same as for
+.Ic show-options .
 .El
 .Sh MOUSE SUPPORT
 If the