Fix deinit test

[nathanmsmith]

Currently on master (074daf10dd685911d95a2b739b84587a58b1b68b):

› yarn test
yarn run v1.12.3
$ jest
 PASS  lib/utils/formatAPIObject.test.js
 PASS  __tests__/myInfo.test.js
 PASS  __tests__/init.test.js (12.84s)
 FAIL  __tests__/deinit.test.js (14.542s)
  ● Keybase bot deinitialization › kills all spawned processes it creates

    expect(received).toBe(expected) // Object.is equality

    Expected: 0
    Received: 1

      70 | 
      71 |     // All processes should be shut down for alice
    > 72 |     expect(await countProcessesMentioning(aliceHomeDir)).toBe(0)
         |                                                          ^
      73 |     // The service should still be running for bob, as that was started before he was initialized
      74 |     expect(await countProcessesMentioning(bobHomeDir)).toBe(1)
      75 |     await stopServiceManually(bobHomeDir)

      at Object.toBe (__tests__/deinit.test.js:72:58)

 PASS  __tests__/chat.test.js (42.947s)

Test Suites: 1 failed, 4 passed, 5 total
Tests:       1 failed, 29 passed, 30 total
Snapshots:   0 total
Time:        43.399s, estimated 53s
Ran all test suites.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

[nathanmsmith]

Seems to have been introduced in #90