function fix( fixer ) {
			var newDesc;
			var start;
			var end;
			var str;

			start = jsdoc.range[ 0 ];
			end = jsdoc.range[ 1 ];
			str = source.text.slice( start, end );

			newDesc = ( flags.missingCapital ) ? capitalize( desc ) : desc;
			if ( flags.missingPeriod ) {
				newDesc += '.';
			}

			// Replace the description with a capitalized version:
			str = str.replace( desc, newDesc );
			return fixer.replaceTextRange( [ start, end ], str );
		}
Fixes the leading description sentence.

@private
@param {Object} fixer - ESLint fixer
@returns {Object} fix