More minor cleanup.

Author: TheRealMDoerr

src/hotspot/share/opto/library_call.cpp

@@ -7474,18 +7474,18 @@ bool LibraryCallKit::inline_counterMode_AESCrypt(vmIntrinsics::ID id) {
 }
 
 //------------------------------get_key_start_from_aescrypt_object-----------------------
-Node * LibraryCallKit::get_key_start_from_aescrypt_object(Node *aescrypt_object) {
+Node* LibraryCallKit::get_key_start_from_aescrypt_object(Node* aescrypt_object) {
   // MixColumns for decryption can be reduced by preprocessing MixColumns with round keys.
   // Intel's extension is based on this optimization and AESCrypt generates round keys by preprocessing MixColumns.
   // However, ppc64 vncipher processes MixColumns and requires the same round keys with encryption.
-  // The ppc64, s390 and riscv64 stubs of encryption and decryption use the same round keys.
+  // The following platform specific stubs of encryption and decryption use the same round keys.
 #if defined(PPC64) || defined(S390) || defined(RISCV64)
   const char* key_name = "sessionKe";
 #else
   const char* key_name = "K";
-#endif // PPC64
+#endif
   Node* objAESCryptKey = load_field_from_object(aescrypt_object, key_name, "[I");
-  assert (objAESCryptKey != nullptr, "wrong version of com.sun.crypto.provider.AES_Crypt");
+  assert(objAESCryptKey != nullptr, "wrong version of com.sun.crypto.provider.AES_Crypt");
   if (objAESCryptKey == nullptr) return (Node *) nullptr;
 
   // now have the array, need to get the start address of the K array