On Linux, all spaces after the first are stripped from the value of world.executor.
http://www.byond.com/docs/ref/info.html#/world/var/executor
Code Snippet (if applicable) to Reproduce Problem:
/world/executor = "/usr/bin/env DreamDaemon -trusted -logself"
Expected Results:
.dmb starts with #!/usr/bin/env DreamDaemon -trusted -logself
Actual Results:
.dmb starts with #!/usr/bin/env DreamDaemon-trusted-logself
(Note that that line wouldn't work anyways for other reasons which might or might not be a DD bug)