Fix comment typo

Summary: ^

Reviewed By: AlnisM

Differential Revision: D82217813

fbshipit-source-id: c3fb104c987efa00458b465d197397c6d2df8f1c

Author: Rob Lyerly

cachelib/allocator/nvmcache/NvmCache.h

@@ -566,7 +566,7 @@ typename NvmCache<C>::Config NvmCache<C>::Config::validateAndSetDefaults() {
     if (blockSize % encryptionBlockSize != 0) {
       throw std::invalid_argument(folly::sformat(
           "Encryption enabled but the encryption block granularity is not "
-          "aligned to the navy block size. ecryption block size: {}, "
+          "aligned to the navy block size. encryption block size: {}, "
           "block size: {}",
           encryptionBlockSize,
           blockSize));