[Patch, fortran] PR19262 more than thirty-nine continuation lines should issue a std-warn

[Jerry DeLisle]

Jerry DeLisle wrote:
> PING, this fixes PR19260 and PR19262.  I have a patch in the works for 
> PR19261 as well, but it is ugly and I don't like it yet.  PR19261 is 
> more subtle then one would think.
> 
> So I would like to get this patch here committed first.
> 
I just realized I left the gfortran.h portion of this patch out.  I will retest 
and send the corrected patch when done.

Sorry,

Jerry