libbb: invert the meaning of SETUP_ENV_NO_CHDIR -> SETUP_ENV_CHDIR

Double negatives are hard to grok.

function                                             old     new   delta
login_main                                           986     988      +2
su_main                                              474     470      -4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 2/-4)               Total: -2 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/loginutils/su.c b/loginutils/su.c
index e1db7590f..6efe1981a 100644
--- a/loginutils/su.c
+++ b/loginutils/su.c
@@ -176,10 +176,9 @@ int su_main(int argc UNUSED_PARAM, char **argv)
 
         change_identity(pw);
         setup_environment(opt_shell,
-                        ((flags & SU_OPT_l) / SU_OPT_l * SETUP_ENV_CLEARENV)
-                        + (!(flags & SU_OPT_mp) * SETUP_ENV_CHANGEENV)
-                        + (!(flags & SU_OPT_l) * SETUP_ENV_NO_CHDIR),
-                        pw);
+                ((flags & SU_OPT_l) ? (SETUP_ENV_CLEARENV + SETUP_ENV_CHDIR) : 0)
+                        + (!(flags & SU_OPT_mp) * SETUP_ENV_CHANGEENV),
+                pw);
         IF_SELINUX(set_current_security_context(NULL);)
 
         if (opt_command) {