terraform/aws module: typo

This is what I get for thinking that the GitHub in-browser editor would
be sufficient. -_-

terraform/aws/consul.tf

@@ -62,12 +62,12 @@ resource "aws_security_group" "consul" {
         protocol = "tcp"
         cidr_blocks = ["0.0.0.0/0"]
     }
-    
+
     // This is for outbound internet access
     egress {
         from_port = 0
         to_port = 0
         protocol = "-1"
-        cidr_block = "0.0.0.0/0"
+        cidr_blocks = ["0.0.0.0/0"]
     }
 }