Fix generic exception formatting

[0xced]

Fixes #1754

• I have read the Contribution Guidelines
• I have commented on the issue above and discussed the intended changes
• A maintainer has signed off on the changes and the issue was assigned to me
• All newly added code is adequately covered by tests
• All existing tests are still running without errors
• No documentation changes are required

Changes

Before this pull request, generic exceptions would be mangled.

0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]]: Dummy fault reason
  at void <Main>$(string[] args) in Program.cs:7

After this pull request, generic exceptions are displayed properly.

FaultException<DriveInfo>: Dummy fault reason
  at void <Main>$(string[] args) in Program.cs:7

---

Please upvote 👍 this pull request if you are interested in it.

[patriksvensson]

LGTM 👍