whitespace changes

whitespace changes

* module/language/elisp/bindings.scm:
* module/language/elisp/compile-tree-il.scm:
* module/language/elisp/lexer.scm:
* module/language/elisp/parser.scm:
* module/language/elisp/runtime.scm:
* module/language/elisp/runtime/function-slot.scm:
* module/language/elisp/runtime/macro-slot.scm: Ensure that all
  top-level forms and comments are separated by exactly one newline.
  Remove blank lines in most procedure bodies. Delete trailing
  whitespace.

Signed-off-by: Andy Wingo <wingo@pobox.com>