[dwm] cleanup patch for r874

[dfenze]

Hi,
        created simply patch that somewhat cleanup r874 (actual tip).

URL:
        http://na.srck.net/dwm/dwm-r874-cleanup.patch

Stats:
        client.c |   14 ++++++++++----
        dwm.h    |    1 +
        event.c  |    3 +--
        layout.c |   15 ++++-----------
        4 files changed, 16 insertions(+), 17 deletions(-)

It creates new function:
+focustopvisible(void) {
+       Client *c;
+
+       for(c = stack; c && !isvisible(c); c = c->snext);
+       focus(c);

and replaces all ocurrances of that selection&focus loops in dwm code

and second thing cleaned up ;) was removing of code in layout.c/zoom
which simply do nothing:
-       for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
-               n++;

but n was never used in func. zoom.

--anydot