Rename default branch to main

Author: F3n67u

CONTRIBUTING.md

@@ -29,4 +29,4 @@ By making a contribution to this project, I certify that:
 The [Node.js Moderation Policy] applies to this project.
 
 [Node.js Moderation Policy]:
-https://github.com/nodejs/admin/blob/master/Moderation-Policy.md
+https://github.com/nodejs/admin/blob/main/Moderation-Policy.md

test/_resolve-labels-helper.js

@@ -6,6 +6,6 @@ const path = require('path')
 const actualResolveLabels = require('../lib/resolve-labels')
 
 const config = fs.readFileSync(path.join(__dirname, '../.github/pr-labels.yml'), 'utf8')
-const defaultBaseBranch = 'master'
+const defaultBaseBranch = 'main'
 
 exports.resolveLabels = (filepathsChanged, baseBranch, limitLabels) => actualResolveLabels(filepathsChanged, baseBranch || defaultBaseBranch, config, limitLabels)

test/resolve-labels.test.js

@@ -427,12 +427,12 @@ tap.test('label: version labels (new, staging)', (t) => {
   t.end()
 })
 
-tap.test('label: no version labels (master)', (t) => {
+tap.test('label: no version labels (main)', (t) => {
   const labels = resolveLabels([
     'deps/v8/include/v8-version.h',
     'deps/v8/src/crankshaft/hydrogen.cc',
     'deps/v8/test/mjsunit/regress/regress-5033.js'
-  ], 'master')
+  ], 'main')
 
   t.same(labels, ['needs-ci', 'V8 Engine'])