update default branch (#305)

src/git-command-manager.ts

@@ -270,7 +270,7 @@ class GitCommandManager {
   /**
    * Resolves a ref to a SHA. For a branch or lightweight tag, the commit SHA is returned.
    * For an annotated tag, the tag SHA is returned.
-   * @param {string} ref  For example: 'refs/heads/master' or '/refs/tags/v1'
+   * @param {string} ref  For example: 'refs/heads/main' or '/refs/tags/v1'
    * @returns {Promise<string>}
    */
   async revParse(ref: string): Promise<string> {

src/input-helper.ts

@@ -63,7 +63,7 @@ export function getInputs(): IGitSourceSettings {
       result.commit = github.context.sha
 
       // Some events have an unqualifed ref. For example when a PR is merged (pull_request closed event),
-      // the ref is unqualifed like "master" instead of "refs/heads/master".
+      // the ref is unqualifed like "main" instead of "refs/heads/main".
       if (result.commit && result.ref && !result.ref.startsWith('refs/')) {
         result.ref = `refs/heads/${result.ref}`
       }