anchor.diff:          type = types.lines;
           default = "";
           description = ''
  -          Shell script code called during interactive fish shell initialisation.
  +          Shell script code called during interactive fish shell
  +          initialisation.
           '';
         };
   
  
positive.code:         type = types.lines;
          default = "";
          description = ''
            Shell script code called during fish shell initialisation.
          '';
        };
  
  
negative.code:         type = types.lines;
          default = "";
          description = ''
            Shell script code called during fish login shell
            initialisation.
          '';
        };
  
  