driveby semi-colon addition and use regex

scripts/extract-latest-release-notes.js

@@ -16,16 +16,16 @@ const fs = require('fs');
 function extractLatestChangelog(changelogPath) {
   const changelog = fs.readFileSync(changelogPath).toString();
   // Matches everything from the first entry at h2 ('##') followed by a space and a non-prerelease semver version
-  // until the next entry at h2.
-  const firstReleaseNoteEntryExp = /^## \d+\.\d+\.\d\n.*?(?=^## )/ms;
-  // append the changelog with a dummy entry to ensure new packages match the regex
-  return (changelog + '\n## ').match(firstReleaseNoteEntryExp)[0];
-}
+  // until the next entry at h2 or the end of the file (useful for first entry).
+  const firstReleaseNoteEntryExp = /^## \d+\.\d+\.\d\n.*?((?=^## )|$(?![\r\n]))/ms;
+
+  return changelog.match(firstReleaseNoteEntryExp)[0];
+};
 
 fs.mkdirSync('./.tmp/', {
   recursive: true
 });
 
-const notesFile = './.tmp/release-notes.md'
+const notesFile = './.tmp/release-notes.md';
 const changelogFilePaths = process.argv.slice(2);
 fs.writeFileSync(notesFile, changelogFilePaths.map(filePath => extractLatestChangelog(filePath)).join('\n'));