patch by Shaun Jackman to combine dup/close funcs into dup2

diff --git a/coreutils/watch.c b/coreutils/watch.c
index 8a6a019bcde24bdd49d0399829a76db335401a85..31fadfb852e33a207838a96735f1e9996ea6e8f9 100644 (file)
--- a/coreutils/watch.c
+++ b/coreutils/watch.c
@@ -82,7 +82,7 @@ extern int watch_main(int argc, char **argv)
        header[len] = 0;
 
        /* thanks to lye, who showed me how to redirect stdin/stdout */
-       old_stdout = dup(1);
+       old_stdout = dup(STDOUT_FILENO);
 
        while (1) {
                time(&t);
@@ -98,8 +98,7 @@ extern int watch_main(int argc, char **argv)
                        sleep(period);
                } else if (0 == pid) {
                        //child
-                       close(1);
-                       dup(old_stdout);
+                       dup2(old_stdout, STDOUT_FILENO);
                        execvp(*watched_argv, watched_argv);
                        bb_perror_msg_and_die(*watched_argv);
                } else {