cmd/dist: xprintf() can't output whole of 'dist env'.
cmd/dist: xprintf() can't output whole of 'dist env'.

R=golang-dev, mpimenov, alex.brainman
CC=golang-dev
http://codereview.appspot.com/5667045

Committer: Alex Brainman <54ba58c8441b5eff861de6b4e5ee46baf086b142@gmail.com>

gnanderson/go,gnanderson/go,tv42/old-go,dsriram/golang,gnanderson/go,apparentlymart/golang,apparentlymart/golang,dsriram/golang,dsriram/golang,tv42/old-go,pombredanne/go-deleteme,gnanderson/go,dsriram/golang,tv42/old-go,apparentlymart/golang,gnanderson/go,dsriram/golang,pombredanne/go-deleteme,pombredanne/go-deleteme,gnanderson/go,pombredanne/go-deleteme,tv42/old-go,tv42/old-go,pombredanne/go-deleteme,pombredanne/go-deleteme,gnanderson/go,tv42/old-go,apparentlymart/golang,apparentlymart/golang,pombredanne/go-deleteme,apparentlymart/golang,dsriram/golang,apparentlymart/golang,tv42/old-go,dsriram/golang