Function: pkg-info-library-original-version

Get the original version in the header of LIBRARY.

The original version is stored in the X-Original-Version header.
This header is added by the MELPA package archive to preserve
upstream version numbers.

LIBRARY is either a symbol denoting a named feature, or a library
name as string.

If SHOW is non-nil, show the version in the minibuffer.

Return the version from the header of LIBRARY as list. Signal an
error if the LIBRARY was not found or had no X-Original-Version

See Info node `(elisp)Library Headers' for more information about library headers. (fn LIBRARY &optional SHOW)