Merge #14192: utils: Convert fs::filesystem_error messages from local multibyte to utf-8 on Windows

e2213689328f8ba42af1d32d12c7b78a71f1ddc7 utils: Convert fs error messages from multibyte to utf-8 (Chun Kuan Lee)

Pull request description:

  Before:
  ![default](https://user-images.githubusercontent.com/11154118/45318798-8d83f480-b570-11e8-8cbb-c729a54f6b9e.png)
  After:
  ![2](https://user-images.githubusercontent.com/11154118/45318806-91177b80-b570-11e8-9474-a62342c92dbd.png)

Tree-SHA512: 0a598bd159286f6784d117b8a24888b2650d5402d687ab0e8d0849e0c3d53797e266647d8177bb6614307c9598019cd7477311bb9895b1bb52a6bd77b460fda1

1 files changed, 2 insertions, 0 deletions

diff --git a/src/fs.h b/src/fs.h
index 5a28d9a81c..5492bdd4ec 100644
--- a/src/fs.h
+++ b/src/fs.h
@@ -38,6 +38,8 @@ namespace fsbridge {
         void* hFile = (void*)-1; // INVALID_HANDLE_VALUE
 #endif
     };
+
+    std::string get_filesystem_error_message(const fs::filesystem_error& e);
 };
 
 #endif // BITCOIN_FS_H