Fix log file rotation test.

The test was looking for the wrong file name.
Since compression happens asyncronously, sometimes the test would
succeed and sometimes fail.

This change makes sure to wait for the compressed version of the file
since we can't know when the compression is going to occur.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>

daemon/logger/loggerutils/logfile_test.go

@@ -265,11 +265,11 @@ func TestCheckCapacityAndRotate(t *testing.T) {
 	assert.Assert(t, os.IsNotExist(err), dirStringer{dir})
 
 	assert.NilError(t, l.WriteLogEntry(&logger.Message{Line: []byte("hello world!")}))
-	poll.WaitOn(t, checkFileExists(f.Name()+".1"), poll.WithTimeout(30*time.Second))
+	poll.WaitOn(t, checkFileExists(f.Name()+".1.gz"), poll.WithDelay(time.Millisecond), poll.WithTimeout(30*time.Second))
 
 	assert.NilError(t, l.WriteLogEntry(&logger.Message{Line: []byte("hello world!")}))
-	poll.WaitOn(t, checkFileExists(f.Name()+".1"), poll.WithTimeout(30*time.Second))
-	poll.WaitOn(t, checkFileExists(f.Name()+".2.gz"), poll.WithTimeout(30*time.Second))
+	poll.WaitOn(t, checkFileExists(f.Name()+".1.gz"), poll.WithDelay(time.Millisecond), poll.WithTimeout(30*time.Second))
+	poll.WaitOn(t, checkFileExists(f.Name()+".2.gz"), poll.WithDelay(time.Millisecond), poll.WithTimeout(30*time.Second))
 
 	// Now let's simulate a failed rotation where the file was able to be closed but something else happened elsewhere
 	// down the line.