commit ef7fce5a4fcd951a6c2bd1b9c6d21e6cf6a711e2
Author: gruebel <anton.gruebel@gmail.com>
Date:   Thu Nov 21 22:35:20 2019 +0100

    Fixed failing tests, due to a new required parameter StreamEnabled

diff --git a/tests/test_dynamodbstreams/test_dynamodbstreams.py b/tests/test_dynamodbstreams/test_dynamodbstreams.py
index 01cf915a..a98f97bf 100644
--- a/tests/test_dynamodbstreams/test_dynamodbstreams.py
+++ b/tests/test_dynamodbstreams/test_dynamodbstreams.py
@@ -213,7 +213,7 @@ class TestEdges:

         resp = conn.update_table(
             TableName="test-streams",
-            StreamSpecification={"StreamViewType": "KEYS_ONLY"},
+            StreamSpecification={"StreamEnabled": True, "StreamViewType": "KEYS_ONLY"},
         )
         assert "StreamSpecification" in resp["TableDescription"]
         assert resp["TableDescription"]["StreamSpecification"] == {
@@ -226,7 +226,10 @@ class TestEdges:
         with assert_raises(conn.exceptions.ResourceInUseException):
             resp = conn.update_table(
                 TableName="test-streams",
-                StreamSpecification={"StreamViewType": "OLD_IMAGES"},
+                StreamSpecification={
+                    "StreamEnabled": True,
+                    "StreamViewType": "OLD_IMAGES",
+                },
             )

     def test_stream_with_range_key(self):
@@ -243,7 +246,7 @@ class TestEdges:
                 {"AttributeName": "color", "AttributeType": "S"},
             ],
             ProvisionedThroughput={"ReadCapacityUnits": 1, "WriteCapacityUnits": 1},
-            StreamSpecification={"StreamViewType": "NEW_IMAGES"},
+            StreamSpecification={"StreamEnabled": True, "StreamViewType": "NEW_IMAGES"},
         )
         stream_arn = resp["TableDescription"]["LatestStreamArn"]

diff --git a/moto/core/responses.py b/moto/core/responses.py
index bf4af902..c708edb8 100644
--- a/moto/core/responses.py
+++ b/moto/core/responses.py
@@ -307,7 +307,7 @@ class BaseResponse(_TemplateEnvironmentMixin, ActionAuthenticatorMixin):
         def _convert(elem, is_last):
             if not re.match("^{.*}$", elem):
                 return elem
-            name = elem.replace("{", "").replace("}", "")
+            name = elem.replace("{", "").replace("}", "").replace("+", "")
             if is_last:
                 return "(?P<%s>[^/]*)" % name
             return "(?P<%s>.*)" % name