Compile error processing long comment line

petsc@grind:/sandbox/petsc/$ cat pgtest.f90
program main
!args: -ne 39 -theta 30.0 -epsilon 1.e-1 -blob_center 0.,0. -ksp_type cg -pc_type gamg -pc_gamg_type agg -pc_gamg_agg_nsmooths 1 -mg_levels_ksp_chebyshev_esteig 0,0.05 ,0,1.05 -mat_coarsen_type hem -pc_gamg_square_graph 0 -ksp_monitor_short -mg_levels_esteig_ksp_type cg
petsc@grind:/sandbox/petsc/$ pgf90 pgtest.f90 
PGF90-S-0285-Source line too long (pgtest.f90: 3)
  0 inform,   0 warnings,   1 severes, 0 fatal for main
petsc@grind:/sandbox/petsc/$ echo $?
petsc@grind:/sandbox/petsc/$ pgf90 --version

pgf90 18.4-0 64-bit target on x86-64 Linux -tp penryn 
PGI Compilers and Tools
Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.

I get no such error with other fortran compilers [gfortran, ifort etc…]

Hi sab,

Fortran90 limits the line length to 135 characters long. While PGI accepts slightly long line lengths, programs should use continuations to keep the line lengths of a program compliant to the standard.

What’s the line length for this example?