remove explicit import of "sys" add a boolean printer
remove explicit import of "sys"
add a boolean printer

SVN=124362

wesolows/golang-old,tv42/old-go,firebitsbr/golang-old,bdwalton/debian-golang,gnanderson/go,ssrl/go,pombredanne/go-deleteme,wesolows/golang,dsriram/golang,bdwalton/debian-golang,tv42/old-go,pombredanne/go-deleteme,apparentlymart/golang,apparentlymart/golang,tianon/debian-golang,gnanderson/go,nightlyone/golang,h8liu/golang,h8liu/golang,nightlyone/golang,firebitsbr/golang-old,tianon/debian-golang,ssrl/go,pombredanne/go-deleteme,apparentlymart/golang,firebitsbr/golang-old,tianon/debian-golang,firebitsbr/golang-old,h8liu/golang,wesolows/golang-old,tv42/old-go,tianon/debian-golang,nightlyone/golang,ssrl/go,nightlyone/golang,ssrl/go,h8liu/golang,gnanderson/go,pombredanne/go-deleteme,tianon/debian-golang,gnanderson/go,nightlyone/golang,wesolows/golang,pombredanne/go-deleteme,wesolows/golang-old,gnanderson/go,bdwalton/debian-golang,dsriram/golang,bdwalton/debian-golang,nightlyone/golang,apparentlymart/golang,tv42/old-go,apparentlymart/golang,bdwalton/debian-golang,bdwalton/debian-golang,tv42/old-go,tianon/debian-golang,wesolows/golang,tv42/old-go,apparentlymart/golang,wesolows/golang,gnanderson/go,ssrl/go,firebitsbr/golang-old,ssrl/go,pombredanne/go-deleteme,wesolows/golang,dsriram/golang,h8liu/golang,dsriram/golang,apparentlymart/golang,bdwalton/debian-golang,h8liu/golang,wesolows/golang-old,bdwalton/debian-golang,firebitsbr/golang-old,dsriram/golang,gnanderson/go,wesolows/golang-old,ssrl/go,pombredanne/go-deleteme,wesolows/golang,nightlyone/golang,firebitsbr/golang-old,wesolows/golang-old,tianon/debian-golang,wesolows/golang,tv42/old-go,dsriram/golang,firebitsbr/golang-old,tianon/debian-golang,dsriram/golang,wesolows/golang-old,h8liu/golang