Return values should be camelcase instead of underscored (#95)

plugins/modules/gcp_compute_firewall.py

@@ -365,7 +365,7 @@ RETURN = '''
                     - 'Example inputs include: ["22"], ["80","443"], and ["12345-12349"].'
                 returned: success
                 type: list
-    creation_timestamp:
+    creationTimestamp:
         description:
             - Creation timestamp in RFC3339 text format.
         returned: success
@@ -398,7 +398,7 @@ RETURN = '''
               the resource.
         returned: success
         type: str
-    destination_ranges:
+    destinationRanges:
         description:
             - If destination ranges are specified, the firewall will apply only to traffic that
               has destination IP address in these ranges. These ranges must be expressed in CIDR
@@ -447,7 +447,7 @@ RETURN = '''
               precedence over ALLOW rules having equal priority.
         returned: success
         type: int
-    source_ranges:
+    sourceRanges:
         description:
             - If source ranges are specified, the firewall will apply only to traffic that has
               source IP address in these ranges. These ranges must be expressed in CIDR format.
@@ -457,7 +457,7 @@ RETURN = '''
               does not need to match both properties for the firewall to apply. Only IPv4 is supported.
         returned: success
         type: list
-    source_service_accounts:
+    sourceServiceAccounts:
         description:
             - If source service accounts are specified, the firewall will apply only to traffic
               originating from an instance with a service account in this list. Source service
@@ -470,7 +470,7 @@ RETURN = '''
               cannot be used at the same time as sourceTags or targetTags.
         returned: success
         type: list
-    source_tags:
+    sourceTags:
         description:
             - If source tags are specified, the firewall will apply only to traffic with source
               IP that belongs to a tag listed in source tags. Source tags cannot be used to control
@@ -482,7 +482,7 @@ RETURN = '''
               firewall to apply.
         returned: success
         type: list
-    target_service_accounts:
+    targetServiceAccounts:
         description:
             - A list of service accounts indicating sets of instances located in the network that
               may make network connections as specified in allowed[].
@@ -491,7 +491,7 @@ RETURN = '''
               applies to all instances on the specified network.
         returned: success
         type: list
-    target_tags:
+    targetTags:
         description:
             - A list of instance tags indicating sets of instances located in the network that
               may make network connections as specified in allowed[].