Use of int8()

[dkokron]

GDIT is testing a static analysis tool called Codee (https://www.codee.com/). Codee flagged an issue in the ncdiag code. The code uses the int8(arg) routine to convert its argument into a 64-bit integer. Codee didn't recognise this routine and refused to process the files that contain it. I replaced int8(arg) with int(arg,8) which appears to be the standard compliant way to accomplish this conversion. My sandbox contains the following modified files.

modified:   ncdiag/ncdw_chaninfo.F90
modified:   ncdiag/ncdw_ciresize.F90
modified:   ncdiag/ncdw_dresize.F90
modified:   ncdiag/ncdw_metadata.F90
modified:   ncdiag/ncdw_mresize.F90

[dkokron]

The int8() function name also conflicts with the int8 type from iso_fortran_env.
https://gcc.gnu.org/onlinedocs/gfortran/ISO_005fFORTRAN_005fENV.html