I realised I'd been using die() in a few places assuming it was
available, but it wasn't exported. I guess it didn't matter because
whatever was wrong, we were failing anyway :)
This exports the function to make it available to sub-processes, which
should remove the need to source it as done in several places.
Change-Id: I7b9a5a6db406e160099b6ed9fde80455ae227327
Currently when these files are opened your editor doesn't know what to
do with them. Add #!/bin/bash to library functions so that editors,
diff-tools, etc can do syntax highlighting.
There are other ways to skin this cat, such as renaming to ".sh",
adding -* style editor flags, etc. We had this discussion in DevStack
too, and came to the conclusion the simplest thing that works for
everyone is to just put the #! at the top.
Change-Id: I4cf64321e14844696139f5d40e4d719436390b35
