@carrotsearch/gatsby-transformer-html/src/reporter-utils.js

A Gatsby transformer plugin for authoring content in HTML. Supports ToC generation, responsive images, section anchors and HighlightJS code highlighting.

exports.error = (message, reporter) => {
  const dot = message.endsWith("." ? "" : ".");
  reporter.panicOnBuild(`${message}${dot}`);
};