[Bug fortran/118793] request NAMELIST reports of input errors indicate position of error and show line containing error

[jvdelisle at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118793

--- Comment #4 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
The particular error situation is unique because it is just before we try to
match the variable name.  This might be sufficient in this case:

$ ./a.out 
At line 18 of file pr118793.f90
Fortran runtime error: namelist read: misplaced '=' following previous '='
while reading data.