chpasswd: fixes and code shrink

update_passwd                                        732     734      +2
chpasswd_main                                        318     292     -26
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 2/-26)             Total: -24 bytes
   text    data     bss     dec     hex filename
 781564    1168   11900  794632   c2008 busybox_old
 781548    1168   11900  794616   c1ff8 busybox_unstripped

1 files changed, 2 insertions, 0 deletions

diff --git a/scripts/trylink b/scripts/trylink
index cbd702338..bfc67bf5d 100755
--- a/scripts/trylink
+++ b/scripts/trylink
@@ -22,6 +22,8 @@ try "-Wl,--start-group $l_list -Wl,--end-group" "$@" \
     cat busybox_ld.err
     exit 1
 }
+# Hack: we are not supposed to know executable name,
+# but this hack cuts down link time
 mv busybox_unstripped busybox_unstripped.tmp
 
 # Now try to remove each lib and build without.