Replace uses of boost::filesystem with fs

Step two in abstracting away boost::filesystem.

To repeat this, simply run:
```
git ls-files \*.cpp \*.h | xargs sed -i 's/boost::filesystem/fs/g'
```

1 files changed, 2 insertions, 2 deletions

diff --git a/src/wallet/walletdb.h b/src/wallet/walletdb.h
index 271c1d66c9..b94f341b2e 100644
--- a/src/wallet/walletdb.h
+++ b/src/wallet/walletdb.h
@@ -185,9 +185,9 @@ public:
     /* Function to determine if a certain KV/key-type is a key (cryptographical key) type */
     static bool IsKeyType(const std::string& strType);
     /* verifies the database environment */
-    static bool VerifyEnvironment(const std::string& walletFile, const boost::filesystem::path& dataDir, std::string& errorStr);
+    static bool VerifyEnvironment(const std::string& walletFile, const fs::path& dataDir, std::string& errorStr);
     /* verifies the database file */
-    static bool VerifyDatabaseFile(const std::string& walletFile, const boost::filesystem::path& dataDir, std::string& warningStr, std::string& errorStr);
+    static bool VerifyDatabaseFile(const std::string& walletFile, const fs::path& dataDir, std::string& warningStr, std::string& errorStr);
 
     //! write the hdchain model (external chain child index counter)
     bool WriteHDChain(const CHDChain& chain);