set ldflags in build

script/build

@@ -10,11 +10,11 @@ scriptdir="$PWD"/script
 
 # We have a few binaries that we want to build, so let's put them into bin/
 
-version=$(git rev-parse HEAD)
-describe=$(git describe --tags --always --dirty)
+RELEASE_VERSION=$(git describe --abbrev=0 --tags | tr -d 'v')
+GIT_COMMIT=$(git rev-parse HEAD)
 
 export GOPATH="$PWD/.gopath"
 cd .gopath/src/github.com/github/gh-ost
 
 # We put the binaries directly into the bindir, because we have no need for shim wrappers
-go build -o "$bindir/gh-ost" -ldflags "-X main.AppVersion=${version} -X main.BuildDescribe=${describe}" ./go/cmd/gh-ost/main.go
+go build -o "$bindir/gh-ost" -ldflags "-X main.AppVersion=${RELEASE_VERSION} -X main.GitCommit=${GIT_COMMIT}" ./go/cmd/gh-ost/main.go