Updated the files.

my-app/node_modules/adjust-sourcemap-loader/lib/process/debug-message.js

@@ -0,0 +1,58 @@
+'use strict';
+
+var PACKAGE_NAME = require('../../package.json').name,
+    PADDING      = (new Array(11)).join(' ');
+
+/**
+ * Format a debug message
+ * @param {{resourcePath:string, loaders:Array, loaderIndex:number}} context A loader or compilation
+ * @param {{input:Array.<string>, absolute:Array.<string>, output:Array.<string>, root:string}} info Source-map info
+ * @returns {string} An encoded debug string
+ */
+function debugMessage(context, info) {
+  return [
+    '  ',
+    PACKAGE_NAME + ':',
+    '  ' + context.resourcePath,
+    formatField('@', precedingRequest(context)),
+    formatField('INPUT', info.input || '(source-map absent)'),
+    formatField('ABSOLUTE', info.absolute),
+    formatField('OUTPUT', info.output),
+    formatField('ROOT', info.root)
+  ]
+    .filter(Boolean)
+    .join('\n');
+}
+
+module.exports = debugMessage;
+
+/**
+ * Find the request that precedes this loader in the loader chain
+ * @param {{loaders:Array, loaderIndex:number}} loader The loader context
+ * @returns {string} The request of the preceding loader
+ */
+function precedingRequest(loader) {
+  var isLoader = ('loaderIndex' in loader) && ('loaders' in loader) && Array.isArray(loader.loaders);
+  if (isLoader) {
+    var index = loader.loaderIndex + 1;
+    return (index in loader.loaders) ? loader.loaders[index].request : '(no preceding loader)';
+  }
+}
+
+/**
+ * Where the data is truthy then format it with a right-aligned title.
+ * @param {string} title
+ * @param {*} data The data to display
+ * @returns {boolean|string} False where data is falsey, else formatted message
+ */
+function formatField(title, data) {
+  return !!data && (rightAlign(title) + formatData(data));
+
+  function rightAlign(text) {
+    return (PADDING + text + ' ').slice(-PADDING.length);
+  }
+
+  function formatData(data) {
+    return Array.isArray(data) ? data.join('\n' + PADDING) : data;
+  }
+}