restore helpful error rules
restore helpful error rules

R=rsc
OCL=19928
CL=19928

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