Log Message:
cfitsio: updated to 4.2.0

Version 4.2.0 - Nov 2022

  - This release includes patches to security vulnerabilities.  We
    strongly encourage this upgrade, particularly for those running
    CFITSIO in web accessible applications.

  - Fix to fits_read_key function, which was failing to properly read
    keywords declared type TUINT on compilers where sizeof(int) =
    sizeof(long).

  - Added new functions fits_read_cols and fits_write_cols to efficiently
    read or write multiple columns in a single function call

  - Added new function fits_copy_selrows to copy only selected rows, such
    as the selected rows returned by fits_find_rows

  - Added new calculator functions ERF(X), ERFC(X) and GAMMA(X), which are
    mathematical special functions of the same name

  - Added new calculator function GTIFIND() which reports which GTI row
    brackets a given time sample

  - Added new calculator functions which operate upon vector table
    values NAXIS(V), NAXES(V,n), ELEMENTNUM(V) and AXISELEM(V,n),
    and ARRAY(X,d) which promotes scalar X to a vector or array
    with given dimensions.

  - The CFITSIO histogramming code now handles binning by any
    arbitrary calculator expression rather than just a column name.
    Both the binned columns as well as the optional weights may be
    calculator expressions, enclosed in parentheses.

  - Binning of vector columns or expressions is now supported, as long
    as all binned inputs (as well as the optional weighting) have the
    same vector dimensions.  Binning of variable-length columns remains
    unsupported.

  - A bug that caused histogram weights from columns that are null values
    to be tallied along with non-null values has been fixed.

  - The CFITSIO calculator and histogramming functionality is now
    fully reentrant and does not require multithreading interlocks.

  - A long-standing segmentation fault bug in the histogramming code
    related to binning any value using the "reciprocal" /XXXX notation
    has been fixed.

  - Added mutex locks for thread safety in ftgiou and ftfiou.

  - Added several Fortran wrappers to support image read/write when
    'fpixel' and 'nelements' are 8-byte integers.

  - Fixed bug which was adding spaces to some cases of long string key
    value output.