fix downloadAndPatch

Author: aduh95

lib/cherry_pick.js

@@ -71,7 +71,7 @@ export default class CherryPick {
       owner: this.owner,
       repo: this.repo
     }, false, cli);
-    const expectedCommitShas =
+    this.expectedCommitShas =
       metadata.data.commits.map(({ commit }) => commit.oid);
 
     const amend = await cli.prompt(
@@ -84,7 +84,7 @@ export default class CherryPick {
     }
 
     try {
-      const commitInfo = await this.downloadAndPatch(expectedCommitShas);
+      const commitInfo = await this.downloadAndPatch();
       const cleanLint = await this.validateLint();
       if (cleanLint === LINT_RESULTS.FAILED) {
         cli.error('Patch still contains lint errors. ' +