Replace GCLOUD_PROJECT with GOOGLE_CLOUD_PROJECT. [(#4022)](#4022)

Author: kurtisvg

asset/snippets/snippets/quickstart_batchgetassetshistory_test.py

@@ -24,7 +24,7 @@
 
 import quickstart_batchgetassetshistory
 
-PROJECT = os.environ['GCLOUD_PROJECT']
+PROJECT = os.environ['GOOGLE_CLOUD_PROJECT']
 BUCKET = 'assets-{}'.format(uuid.uuid4().hex)
 
 

asset/snippets/snippets/quickstart_deletefeed_test.py

@@ -23,7 +23,7 @@
 import quickstart_createfeed
 import quickstart_deletefeed
 
-PROJECT = os.environ['GCLOUD_PROJECT']
+PROJECT = os.environ['GOOGLE_CLOUD_PROJECT']
 ASSET_NAME = 'assets-{}'.format(uuid.uuid4().hex)
 FEED_ID = 'feed-{}'.format(uuid.uuid4().hex)
 TOPIC = 'topic-{}'.format(uuid.uuid4().hex)

asset/snippets/snippets/quickstart_exportassets_test.py

@@ -22,7 +22,7 @@
 
 import quickstart_exportassets
 
-PROJECT = os.environ['GCLOUD_PROJECT']
+PROJECT = os.environ['GOOGLE_CLOUD_PROJECT']
 BUCKET = 'assets-{}'.format(uuid.uuid4().hex)
 
 

asset/snippets/snippets/quickstart_getfeed_test.py

@@ -24,7 +24,7 @@
 import quickstart_deletefeed
 import quickstart_getfeed
 
-PROJECT = os.environ['GCLOUD_PROJECT']
+PROJECT = os.environ['GOOGLE_CLOUD_PROJECT']
 ASSET_NAME = 'assets-{}'.format(uuid.uuid4().hex)
 FEED_ID = 'feed-{}'.format(uuid.uuid4().hex)
 TOPIC = 'topic-{}'.format(uuid.uuid4().hex)

asset/snippets/snippets/quickstart_listfeeds_test.py

@@ -18,7 +18,7 @@
 
 import quickstart_listfeeds
 
-PROJECT = os.environ['GCLOUD_PROJECT']
+PROJECT = os.environ['GOOGLE_CLOUD_PROJECT']
 
 
 def test_list_feeds(capsys):

asset/snippets/snippets/quickstart_updatefeed_test.py

@@ -24,7 +24,7 @@
 import quickstart_deletefeed
 import quickstart_updatefeed
 
-PROJECT = os.environ['GCLOUD_PROJECT']
+PROJECT = os.environ['GOOGLE_CLOUD_PROJECT']
 ASSET_NAME = 'assets-{}'.format(uuid.uuid4().hex)
 FEED_ID = 'feed-{}'.format(uuid.uuid4().hex)
 TOPIC = 'topic-{}'.format(uuid.uuid4().hex)