Gets the change log of this package, that is, (by default) the NEWS (then the
HISTORY and ChangeLog) file, which should is expected to
be located in the root directory of the package,
i.e. *getPath().
# S3 method for Package
getChangeLog(this, filenames=c("NEWS", "HISTORY", "ChangeLog"), newline="\n", ...)The character string to collapse lines in the file.
Not used.
Returns the complete contents of the change log file as a
character string. If not found, NULL is returned.
For more information see Package.