Fix daemon logging rate limiter

Based on #602 but with test fix

electrumx/server/daemon.py

@@ -116,7 +116,7 @@ class Daemon(object):
             nonlocal last_error_log, retry
             now = time.time()
             if now - last_error_log > 60:
-                last_error_time = now
+                last_error_log = now
                 self.logger.error(f'{error}  Retrying occasionally...')
             if retry == self.max_retry and self.failover():
                 retry = 0

tests/server/test_daemon.py

@@ -487,6 +487,6 @@ async def test_failover(daemon, caplog):
         with ClientSessionFailover(('getblockcount', [], height)):
             await daemon.height() == height
 
-    assert in_caplog(caplog, "disconnected", 3)
+    assert in_caplog(caplog, "disconnected", 1)
     assert in_caplog(caplog, "failing over")
     assert in_caplog(caplog, "connection restored")