old_contents: from numdist_copy import default_lib_dirs, default_include_dirs, \
                           default_src_dirs, get_standard_file
  from numdist_copy import msvc_runtime_library
  
  from conv_template import process_file as process_c_file
  from from_template import process_file as process_f_file
  
new_contents: from numdist_copy import default_lib_dirs, default_include_dirs, \
                           default_src_dirs, get_standard_file
  from numdist_copy import msvc_runtime_library
  
  from conv_template import process_file as process_c_file, process_str as process_c_str
  from from_template import process_file as process_f_file
  
subject: Add process_c_str function to the numdist API