ox-beamer: Ensure nil is not passed to regexp function
* lisp/ox-beamer.el (org-beamer--format-frame): If contents is nil, then replace it with an empty string.
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@ -518,7 +518,7 @@ used as a communication channel."
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;; remove the first word from the contents in the PDF
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;; output.
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(if (not fragilep) contents
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(replace-regexp-in-string "\\`\n*" "\\& " contents))
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(replace-regexp-in-string "\\`\n*" "\\& " (or contents "")))
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"\\end{frame}")))
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(defun org-beamer--format-block (headline contents info)
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