Fixing up a literal value

Author: BobJWalker

aws/infrastructure/main.tf

@@ -9,7 +9,7 @@ terraform {
   backend "s3" {
     bucket = "${var.backend_bucket}"
     key = "${var.backend_key}"
-    region = "${var.backend_region}
+    region = "${var.backend_region}"
   }
 }