Some style nits and dead assignments.

cmd-show-environment.c

@@ -56,7 +56,7 @@ cmd_show_environment_escape(struct environ_entry *envent)
 	}
 	*out = '\0';
 
-	return ret;
+	return (ret);
 }
 
 void

cmd-swap-pane.c

@@ -58,12 +58,10 @@ cmd_swap_pane_exec(struct cmd *self, struct cmd_q *cmdq)
 			src_wp = TAILQ_NEXT(dst_wp, entry);
 			if (src_wp == NULL)
 				src_wp = TAILQ_FIRST(&dst_w->panes);
-			src_wl = dst_wl;
 		} else if (args_has(self->args, 'U')) {
 			src_wp = TAILQ_PREV(dst_wp, window_panes, entry);
 			if (src_wp == NULL)
 				src_wp = TAILQ_LAST(&dst_w->panes, window_panes);
-			src_wl = dst_wl;
 		} else {
 			src_wl = cmd_find_pane_marked(cmdq, NULL, NULL,
 			    &src_wp);

server-client.c

@@ -551,13 +551,6 @@ server_client_handle_key(struct client *c, int key)
 	w = s->curw->window;
 	wp = w->active;
 
-	/* No session, do nothing. */
-	if (c->session == NULL)
-		return;
-	s = c->session;
-	w = c->session->curw->window;
-	wp = w->active;
-
 	/* Update the activity timer. */
 	if (gettimeofday(&c->activity_time, NULL) != 0)
 		fatal("gettimeofday failed");

tmux.c

@@ -198,7 +198,7 @@ shell_exec(const char *shell, const char *shellcmd)
 	fatal("execl failed");
 }
 
-const char*
+const char *
 find_home(void)
 {
 	struct passwd	*pw;
@@ -213,7 +213,7 @@ find_home(void)
 			home = NULL;
 	}
 
-	return home;
+	return (home);
 }
 
 int

xterm-keys.c

@@ -120,6 +120,8 @@ xterm_keys_match(const char *template, const char *buf, size_t len,
 	size_t	pos;
 	int	retval;
 
+	*modifiers = 0;
+
 	if (len == 0)
 		return (0);