* etc/ORG-NEWS
(New and changed options): Describe the new option
'org-babel-lua-multiple-values-separator'.
(New features): Describe the main change, as per the title of this
commit message.
* lisp/ob-lua.el
(org-babel-lua-multiple-values-separator): Enable the user to
customize the string that separates the individual values in
multi-valued returns.
(org-babel-lua-wrapper-method): Support all Lua types and multi-valued
returns. Further, do not pretty-print tables with one or more
extraneous newline characters.
(org-babel-lua-pp-wrapper-method): Remove in favor of the new, more
general 'org-babel-lua-wrapper-method'.
(org-babel-lua-evaluate-external-process): Adapt for the new
'org-babel-lua-wrapper-method'.
* testing/lisp/test-ob-lua.el
(test-ob-lua/colnames-yes-header-argument-pp):
(test-ob-lua/colnames-nil-header-argument):
(test-ob-lua/colnames-no-header-argument): Stop expecting extraneous
newlines, now that the pretty printer does not output them.
(test-ob-lua/types): Test nil, boolean, number, string, and table
results.
(test-ob-lua/multiple-values): Test multi-valued results.
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