libbb: make parse_chown_usergroup_or_die() set unspecified uid/gid to -1

function                                             old     new   delta
parse_chown_usergroup_or_die                         102     115     +13
chown_main                                           190     175     -15
start_stop_daemon_main                              1043    1027     -16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 13/-31)            Total: -18 bytes

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

1 files changed, 0 insertions, 4 deletions

diff --git a/coreutils/chown.c b/coreutils/chown.c
index eaa1ee2a3..247aa3bf1 100644
--- a/coreutils/chown.c
+++ b/coreutils/chown.c
@@ -112,10 +112,6 @@ int chown_main(int argc UNUSED_PARAM, char **argv)
         int opt, flags;
         struct param_t param;
 
-        /* Just -1 might not work: uid_t may be unsigned long */
-        param.ugid.uid = -1L;
-        param.ugid.gid = -1L;
-
 #if ENABLE_FEATURE_CHOWN_LONG_OPTIONS
         applet_long_options = chown_longopts;
 #endif