Work around problem with comments in heredocs

Author: owen-mc

ruby/ql/test/query-tests/security/cwe-089/ActiveRecordInjection.rb

@@ -66,7 +66,8 @@ def some_request_handler
     # BAD: executes `SELECT "users".* FROM "users" WHERE id BETWEEN '#{params[:min_id]}' AND 100000`
     # where `params[:min_id]` is unsanitized
     User.where(<<-SQL, MAX_USER_ID) # $ Alert
-      id BETWEEN '#{params[:min_id]}' AND ? # $ Source
+      id BETWEEN '#{params[:min_id]}' AND ? #{# $ Source
+  }
     SQL
 
     # BAD: chained method case