fix a bug: do not print a ';' after a label if there wasn't one
fix a bug: do not print a ';' after a label if there wasn't one

R=r
OCL=25526
CL=25528

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