fixup: for mnvaults.py

Author: domob1812

divi/qa/rpc-tests/mnvaults.py

@@ -31,6 +31,7 @@ def __init__ (self):
     self.cfg = None
 
   def setup_chain (self):
+    print("Initializing test directory " + self.options.tmpdir)
     for i in range (7):
       initialize_datadir (self.options.tmpdir, i)
 
@@ -232,6 +233,9 @@ def get_payments (self):
       self.advance_time (10)
       time.sleep(0.01)
 
+    # Mine some blocks normally to make sure the rewards are mature.
+    self.mine_blocks (20)
+
     # Check that some payments were made.
     winners = self.nodes[3].getmasternodewinners ()
     found = False