brctl: add support for showstp command
function old new delta
brctl_main 974 2339 +1365
show_bridge_timer - 93 +93
static.state_names - 48 +48
printf_xstrtou - 26 +26
packed_usage 33243 33253 +10
show_bridge 333 323 -10
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 2/1 up/down: 1542/-10) Total: 1532 bytes
text data bss dec hex filename
999868 551 5612
1006031 f59cf busybox_old
1002309 551 5612
1008472 f6358 busybox_unstripped
Signed-off-by: Martin Lewis <martin.lewis.x84@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>