Add missing DataFlowImpl2.qll entry to identical-files.json

Author: hvitved

scripts/identical-files.json

@@ -9,7 +9,8 @@
     ],
     "DataFlow": [
         "codeql/csharp/ql/lib/semmle/code/csharp/dataflow/internal/DataFlowImpl.qll",
-        "ql/lib/codeql/ruby/dataflow/internal/DataFlowImpl.qll"
+        "ql/lib/codeql/ruby/dataflow/internal/DataFlowImpl.qll",
+        "ql/lib/codeql/ruby/dataflow/internal/DataFlowImpl2.qll"
     ],
     "DataFlow2": [
         "codeql/csharp/ql/lib/semmle/code/csharp/dataflow/internal/DataFlowImpl2.qll",
@@ -44,4 +45,4 @@
         "codeql/python/ql/lib/semmle/python/security/performance/SuperlinearBackTracking.qll",
         "ql/lib/codeql/ruby/regexp/SuperlinearBackTracking.qll"
     ]
-}
+}