Make all.bash tests pass in on macOS

Lines 22 to 29 in bd6b3b8

    
           # run tests when limits problem is fixed 
        
           # TODO https://github.com/AlekSi/golang-tip/issues/4 
        
           targz-build: 
        
           	test -n "$(GO_BRANCH)" 
        
           	rm -fr /tmp/golang-tip 
        
           	git clone --branch $(GO_BRANCH) https://go.googlesource.com/go /tmp/golang-tip 
        
           	cd /tmp/golang-tip/src && env GOROOT_FINAL=/usr/local/golang-tip ./make.bash

	# run tests when limits problem is fixed
	# TODO https://github.com/AlekSi/golang-tip/issues/4
	targz-build:
	test -n "$(GO_BRANCH)"

	rm -fr /tmp/golang-tip
	git clone --branch $(GO_BRANCH) https://go.googlesource.com/go /tmp/golang-tip
	cd /tmp/golang-tip/src && env GOROOT_FINAL=/usr/local/golang-tip ./make.bash