pstree: use stdin for screen size detection

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>

diff --git a/procps/pstree.c b/procps/pstree.c
index 54a910f76f47da762e2acfbcde83b897a7e4aea3..180d0939a6442a558ec9e6423bbe27c0bed4740d 100644 (file)
--- a/procps/pstree.c
+++ b/procps/pstree.c
@@ -373,7 +373,7 @@ int pstree_main(int argc UNUSED_PARAM, char **argv)
 
        INIT_G();
 
-       get_terminal_width_height(1, &G.output_width, NULL);
+       get_terminal_width_height(0, &G.output_width, NULL);
 
        opt_complementary = "?1";
        getopt32(argv, "p");