Line length limit fortran compiler

[louisl3grand]

Hi,

I am on a mac computer using the gfortran compiler version 11.3.0.
When compiling the code with make camb I got this error message

mkdir -p Release
gfortran -O3 -fopenmp -ffast-math -fmax-errors=4 -cpp -ffree-form -JRelease -IRelease/ -c constants.f90 -o Release/constants.o
gfortran -O3 -fopenmp -ffast-math -fmax-errors=4 -cpp -ffree-form -JRelease -IRelease/ -c inifile.f90 -o Release/inifile.o
gfortran -O3 -fopenmp -ffast-math -fmax-errors=4 -cpp -ffree-form -JRelease -IRelease/ -c mgcamb.f90 -o Release/mgcamb.o
mgcamb.f90:1087:132:

 1087 |             mg_cache%grhov_t = 3._dl*mg_par_cache%h0_Mpc**2*mg_par_cache%omegav*a**(-1.d0-3.d0*w0DE-3.d0*waDE)*Exp(3.d0*waDE*(a-1.d0))
      |                                                                                                                                    1
Error: Line truncated at (1) [-Werror=line-truncation]
mgcamb.f90:1087:132:

 1087 |             mg_cache%grhov_t = 3._dl*mg_par_cache%h0_Mpc**2*mg_par_cache%omegav*a**(-1.d0-3.d0*w0DE-3.d0*waDE)*Exp(3.d0*waDE*(a-1.d0))
      |                                                                                                                                    1
Error: Expected a right parenthesis in expression at (1)
f951: some warnings being treated as errors
make: *** [Release/mgcamb.o] Error 1

This is due to the line being longer than the limit of 132 characters. Adding the flag -ffree-line-length-none in the Makefile solved this compilation issue for me.

[itrharrison]

@alexzucca90 any chance of getting this merged?