[qa] Fix bug in mininode witness deserialization

Also improve tx printing

qa/rpc-tests/test_framework/mininode.py

@@ -452,7 +452,7 @@ class CTransaction(object):
         else:
             self.vout = deser_vector(f, CTxOut)
         if flags != 0:
-            self.wit.vtxinwit = [CTxInWitness()]*len(self.vin)
+            self.wit.vtxinwit = [CTxInWitness() for i in range(len(self.vin))]
             self.wit.deserialize(f)
         self.nLockTime = struct.unpack("<I", f.read(4))[0]
         self.sha256 = None
@@ -518,8 +518,8 @@ class CTransaction(object):
         return True
 
     def __repr__(self):
-        return "CTransaction(nVersion=%i vin=%s vout=%s nLockTime=%i)" \
-            % (self.nVersion, repr(self.vin), repr(self.vout), self.nLockTime)
+        return "CTransaction(nVersion=%i vin=%s vout=%s wit=%s nLockTime=%i)" \
+            % (self.nVersion, repr(self.vin), repr(self.vout), repr(self.wit), self.nLockTime)
 
 
 class CBlockHeader(object):