remove "em" unit from td width specification
remove "em" unit from td width specification

R=rsc
http://go/go-review/1018037

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