run_remote_tests: destroy the with_spaces hack, use the --args instead of -a (which doesn't work)
run_remote_tests: destroy the with_spaces hack, use the --args instead of -a (which doesn't work)

Change-Id: I8560a4400463d04b7a2441ce6fa9dc9cec834242

BUG=
TEST=run_remote_tests.sh --args='-n 10', and make sure it gets all the way into autotest_run.sh

Review URL: http://codereview.chromium.org/3402007

BugRoger/scripts,gtank/scripts,vmware/coreos-scripts,gtank/scripts,andrejro/coreos--scripts,fivethreeo/scripts,coreos/scripts,nicescale/scripts,andrejro/coreos--scripts,zhang0137/scripts,smilart/scripts,andrejro/coreos--scripts,endocode/scripts,zhang0137/scripts,glevand/coreos--scripts,fivethreeo/scripts,BugRoger/scripts,vmware/coreos-scripts,smilart/scripts,bcwaldon/coreos-scripts,mischief/scripts,trnubo/scripts,gtank/scripts,mjg59/scripts,mjg59/scripts,nicescale/scripts,mischief/scripts,zhang0137/scripts,bcwaldon/coreos-scripts,marineam/coreos-scripts,marineam/coreos-scripts,crawford/scripts,nicescale/scripts,endocode/scripts,mischief/scripts,fivethreeo/scripts,smilart/scripts,marineam/coreos-scripts,glevand/coreos--scripts,vmware/coreos-scripts,trnubo/scripts,sigma/coreos-scripts,coreos/scripts,crawford/scripts,sigma/coreos-scripts,crawford/scripts,endocode/scripts,mjg59/scripts,bcwaldon/coreos-scripts,BugRoger/scripts,sigma/coreos-scripts,trnubo/scripts