Merge bitcoin/bitcoin#27137: test: Raise PRNG seed log to INFO

4d84eae Raise PRNG seed log to INFO. (roconnor-blockstream)

Pull request description:

  Some build infrastructure, such as Nix, will delete failed builds by default, keeping only the log (stdout/stderr) of the failed build.

  For flaky tests, it would be very helpful to have the PRNG seed in the default log in order to redo the failed test.

  By simply raising the PRNG seed logging to INFO, we can, by default, record the seed in the log of every build.

ACKs for top commit:
  MarcoFalke:
    lgtm ACK 4d84eae
  theStack:
    ACK 4d84eae

Tree-SHA512: 3ccb4a4e7639a3babc3b2a6456a6d0bffc090da34e4545b317f7bfbed4e9950d1b38ea5b2a90c37ccb49b3454bdeff03a6aaf86770b9c4dd14b26320aba50b94

Author: fanquake

test/functional/test_framework/test_framework.py

@@ -279,10 +279,10 @@ def setup(self):
         if seed is None:
             seed = random.randrange(sys.maxsize)
         else:
-            self.log.debug("User supplied random seed {}".format(seed))
+            self.log.info("User supplied random seed {}".format(seed))
 
         random.seed(seed)
-        self.log.debug("PRNG seed is: {}".format(seed))
+        self.log.info("PRNG seed is: {}".format(seed))
 
         self.log.debug('Setting up network thread')
         self.network_thread = NetworkThread()