gitreceive: Fix setting env
gitreceive: Fix setting env

Signed-off-by: Jesse Stuart <a5c95b3d7cb4d0ae05a15c79c79ab458dc2c8f9e@jessestuart.ca>

josephglanville/flynn,flynn/flynn,rikur/flynn,josephglanville/flynn,benbjohnson/flynn,flynn/flynn,philiplb/flynn,lmars/flynn,rikur/flynn,benbjohnson/flynn,lmars/flynn,josephglanville/flynn,benbjohnson/flynn,lmars/flynn,rikur/flynn,benbjohnson/flynn,lmars/flynn,josephglanville/flynn,josephglanville/flynn,josephglanville/flynn,rikur/flynn,flynn/flynn,philiplb/flynn,lmars/flynn,benbjohnson/flynn,benbjohnson/flynn,rikur/flynn,philiplb/flynn,flynn/flynn,flynn/flynn,philiplb/flynn,philiplb/flynn,rikur/flynn