Merge pull request #4185 from tmc/fix-building-with-space

Quote volume path in Makefile to allow spaces

Makefile

@@ -3,7 +3,7 @@
 GIT_BRANCH := $(shell git rev-parse --abbrev-ref HEAD)
 DOCKER_IMAGE := docker:$(GIT_BRANCH)
 DOCKER_DOCS_IMAGE := docker-docs:$(GIT_BRANCH)
-DOCKER_RUN_DOCKER := docker run -rm -i -t -privileged -e TESTFLAGS -v $(CURDIR)/bundles:/go/src/github.com/dotcloud/docker/bundles "$(DOCKER_IMAGE)"
+DOCKER_RUN_DOCKER := docker run -rm -i -t -privileged -e TESTFLAGS -v "$(CURDIR)/bundles:/go/src/github.com/dotcloud/docker/bundles" "$(DOCKER_IMAGE)"
 
 default: binary