Version argument does not output acmetool version about acmetool HOT 4 CLOSED

Downloads$ tar xvf acmetool-v0.0.27-linux_amd64_cgo.tar.gz 
acmetool-v0.0.27-linux_amd64_cgo/
acmetool-v0.0.27-linux_amd64_cgo/bin/
acmetool-v0.0.27-linux_amd64_cgo/bin/acmetool
acmetool-v0.0.27-linux_amd64_cgo/doc/
acmetool-v0.0.27-linux_amd64_cgo/doc/acmetool.8
acmetool-v0.0.27-linux_amd64_cgo/README.md
Downloads$ cd acmetool-v0.0.27-linux_amd64_cgo
acmetool-v0.0.27-linux_amd64_cgo$ ./bin/acmetool --version
go version go1.5.2 linux/amd64 gc cgo=true
built by travis
git github.com/alecthomas/template 14fd436dd20c3cc65242a9f396b61bfc8a3926fc heads/master
git github.com/alecthomas/units 2efee857e7cfd4f3d0138cc3cbb1b4966962b93a heads/master
git github.com/coreos/go-systemd 4f14f6deef2da87e4aa59e6c1c1f3e02ba44c5e1 heads/master
git github.com/godbus/dbus a1b8ba5163b7f041b22761461eabd02b70d1f824 heads/master
git github.com/hlandau/acme 3b0a5c5ed2604169f3a5c06fc027f04a3fe1c896 v0.0.27
git github.com/hlandau/degoutils 84ffe62d5c43845c9cf4de43a94dd1c0ad102eb4 heads/master
git github.com/hlandauf/gspt 25f3bd3f5948489aa5f31c949310ae9f2b0e956c heads/master
git github.com/hlandauf/pb 0c1cdefd84b3b1937c4e54309f3a817d9c683bab heads/master
git github.com/hlandau/xlog c37f75515760879c01260fdb842000f8af5c665c heads/master
git github.com/mattn/go-isatty 56b76bdf51f7708750eac80fa38b952bb9f32639 heads/master
git github.com/ogier/pflag 6f7159c3154e7cd4ab30f6cc9c58fa3fd0f22325 heads/master
git github.com/peterhellberg/link 1053d3b2893eeebd482fce32550ec24bebed308c heads/master
git github.com/satori/go.uuid d41af8bb6a7704f00bc3b7cba9355ae6a5a80048 heads/master
git github.com/shiena/ansicolor a422bbe96644373c5753384a59d678f7d261ff10 heads/master
git github.com/square/go-jose 37934a899dd03635373fd1e143936d32cfe48d31 heads/master
git golang.org/x/crypto f18420efc3b4f8e9f3d51f6bd2476e92c46260e9 heads/master
git golang.org/x/net 0cb26f788dd4625d1956c6fd97ffc4c90669d129 heads/master
git gopkg.in/alecthomas/kingpin.v2 8852570bd3865e9c4d4cb7cf5001c4295b07cad5 tags/v2.1.8
git gopkg.in/hlandau/configurable.v1 41496864a1fe3e0fef2973f22372b755d2897402 v1.0.1
git gopkg.in/hlandau/easyconfig.v1 c54c1752c0585f34484ae2f218366984d2234ede v1.0.12
git gopkg.in/hlandau/service.v2 88289e1ff32ad5b17c5b19d3d9680af98b036d0d v2.0.12
git gopkg.in/hlandau/svcutils.v1 71059456e8e64b0913a61a46dd1898853222905e v1.0.3
git gopkg.in/tylerb/graceful.v1 48afeb21e2fcbcff0f30bd5ad6b97747b0fae38e tags/v1.2.3
git gopkg.in/yaml.v2 f7716cbe52baa25d2e9b0d0da546fcf909fc16b4 heads/master