[Bug 55130] New: IF EXIST fails when its argument ends on a slash

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55130

Bug ID: 55130
           Summary: IF EXIST fails when its argument ends on a slash
           Product: Wine
           Version: 8.6
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: cmd
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

When a folder argument of IF EXIST ends on a slash, it will report the argument
as not existing, even though it is.

```
rd /s /q folder
mkdir folder
if exist folder echo "Folder exists"
if not exist folder/ echo "BAD! FOLDER DOES EXIST ACTUALLY"
```

This prints the message "BAD! FOLDER DOES EXIST ACTUALLY", where it shouldn't.