org-babel-results-keyword

org-babel-results-keyword is a variable defined in `ob-core.el'.
Its value is

"RESULTS"

Documentation:
Keyword used to name results generated by code blocks.
Should be either RESULTS or NAME however any capitalization may
be used.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.4 of Emacs.