[trivial] Add end of namespace comments

src/script/bitcoinconsensus.cpp

@@ -68,7 +68,7 @@ struct ECCryptoClosure
 };
 
 ECCryptoClosure instance_of_eccryptoclosure;
-}
+} // namespace
 
 /** Check that all specified flags are part of the libconsensus interface. */
 static bool verify_flags(unsigned int flags)

src/script/interpreter.cpp

@@ -31,7 +31,7 @@ inline bool set_error(ScriptError* ret, const ScriptError serror)
     return false;
 }
 
-} // anon namespace
+} // namespace
 
 bool CastToBool(const valtype& vch)
 {
@@ -1164,7 +1164,7 @@ uint256 GetOutputsHash(const CTransaction& txTo) {
     return ss.GetHash();
 }
 
-} // anon namespace
+} // namespace
 
 PrecomputedTransactionData::PrecomputedTransactionData(const CTransaction& txTo)
 {

src/script/sigcache.cpp

@@ -66,7 +66,7 @@ public:
  * signatureCache could be made local to VerifySignature.
 */
 static CSignatureCache signatureCache;
-}
+} // namespace
 
 // To be called once in AppInitMain/BasicTestingSetup to initialize the
 // signatureCache.

src/script/sign.cpp

@@ -400,7 +400,7 @@ public:
     }
 };
 const DummySignatureChecker dummyChecker;
-}
+} // namespace
 
 const BaseSignatureChecker& DummySignatureCreator::Checker() const
 {

src/script/standard.cpp

@@ -273,7 +273,7 @@ public:
         return true;
     }
 };
-}
+} // namespace
 
 CScript GetScriptForDestination(const CTxDestination& dest)
 {