auto merge of #5405 : kylc/servo/fix_mach_help_msg, r=Ms2ger

Running `./mach run --release` without a release profile built suggests running `./mach build--release`. This PR adds a space before `--release`.
This commit is contained in:
bors-servo 2015-03-31 17:15:52 -06:00
commit b20cc69a7a