src: Correcting coding style of security related code.

Change-Id: Iff09b16d8a86462aff0abbd202b82cebb74bc365
diff --git a/src/security/validator-regex.hpp b/src/security/validator-regex.hpp
index 1124620..fddbb0a 100644
--- a/src/security/validator-regex.hpp
+++ b/src/security/validator-regex.hpp
@@ -59,14 +59,14 @@
 protected:
   virtual void
   checkPolicy(const Data& data,
-              int stepCount,
+              int nSteps,
               const OnDataValidated& onValidated,
               const OnDataValidationFailed& onValidationFailed,
               std::vector<shared_ptr<ValidationRequest> >& nextSteps);
 
   virtual void
   checkPolicy(const Interest& interest,
-              int stepCount,
+              int nSteps,
               const OnInterestValidated& onValidated,
               const OnInterestValidationFailed& onValidationFailed,
               std::vector<shared_ptr<ValidationRequest> >& nextSteps)