Disable cwd detection via /proc

gistfile1.diff

--- tmux-1.6.orig/cmd.c
+++ tmux-1.6/cmd.c
@@ -1235,11 +1235,11 @@ cmd_get_default_path(struct cmd_ctx *ctx
 	if (*cwd == '\0') {
 		if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
 			return (ctx->cmdclient->cwd);
-		if (ctx->curclient != NULL) {
-			wp = s->curw->window->active;
-			if ((cwd = osdep_get_cwd(wp->pid)) != NULL)
-				return (cwd);
-		}
+		/* if (ctx->curclient != NULL) { */
+		/* 	wp = s->curw->window->active; */
+		/* 	if ((cwd = osdep_get_cwd(wp->pid)) != NULL) */
+		/* 		return (cwd); */
+		/* } */
 		return (s->cwd);
 	}
 	return (cwd);