fix: create release commit w/o markdown

Author: codebytere

components/git/release.js

@@ -12,11 +12,11 @@ const PROMOTE = 'promote';
 
 const releaseOptions = {
   prepare: {
-    describe: 'Prepare a new release with the given version number',
+    describe: 'Prepare a new release of Node.js',
     type: 'boolean'
   },
   promote: {
-    describe: 'Promote new release with the given version number',
+    describe: 'Promote new release of Node.js',
     type: 'boolean'
   },
   security: {

lib/prepare_release.js

@@ -376,7 +376,10 @@ class ReleasePreparation {
       messageBody.push('This is a security release.\n\n');
     }
 
-    const notableChanges = this.getBranchDiff({ onlyNotableChanges: true });
+    const notableChanges = this.getBranchDiff({
+      onlyNotableChanges: true,
+      simple: true
+    });
     messageBody.push('Notable changes:\n\n');
     messageBody.push(notableChanges);
 
@@ -429,8 +432,11 @@ class ReleasePreparation {
         `${upstream}/${releaseBranch}`,
         proposalBranch,
         `--require-label=${notableLabels.join(',')}`,
-        '-format=simple'
       ];
+
+      if (opts.simple) {
+        branchDiffOptions.push('--simple')
+      }
     } else {
       const excludeLabels = [
         'semver-major',
@@ -455,8 +461,7 @@ class ReleasePreparation {
         // TODO(codebytere): use Current branch instead of master for LTS
         comparisonBranch,
         `--exclude-label=${excludeLabels.join(',')}`,
-        '--filter-release',
-        '--format=simple'
+        '--filter-release'
       ];
     }