Map ERROR_INVALID_NAME to ENOENT in mapping table of win32error.c

This error can be reached when sending an incorrect file name to open()
on Windows, resulting in a confusing errno reported.  This has been seen
in the development of a different patch by the same author.

Author: Bharath Rupireddy
Discussion: https://postgr.es/m/CALj2ACWet-b8Juba0DiXwfGCyyOcohzwksahE5ebB9rcbLZKCQ@mail.gmail.com

src/port/win32error.c

@@ -164,6 +164,9 @@ static const struct
 	},
 	{
 		ERROR_DELETE_PENDING, ENOENT
+	},
+	{
+		ERROR_INVALID_NAME, ENOENT
 	}
 };