Fix the issue with old pull requests

The problem is that it could not get information of an old pull request because the limit of list api was 100 and the result was sorted by created_at

Author: uiur

lib/github-client.js

@@ -143,7 +143,8 @@ GithubClient.prototype.collectReleasePRs = function (releasePR) {
     return self.get(self.pullRequestEndpoint(), {
       state: 'closed',
       base: self.head,
-      per_page: 100
+      per_page: 100,
+      sort: 'updated'
     }).then(function (res) {
       var prs = res.body
 

test/github-client.js

@@ -140,7 +140,7 @@ describe('GithubClient', function () {
         { sha: '1' },
         { sha: '2' }
       ])
-      .get('/repos/uiureo/awesome-app/pulls?state=closed&base=master&per_page=100')
+      .get('/repos/uiureo/awesome-app/pulls?state=closed&base=master&per_page=100&sort=updated')
       .reply(200, [
         { number: 10, head: { sha: '0' }, merged_at: null },
         { number: 1, head: { sha: '1' }, merged_at: 'a' },