Scan %o, %x and %X properly

[Happypig375]

Description

%x and %X scan like %d.

Repro steps

#r "nuget:FSharpPlus"
FSharpPlus.Parsing.trySscanf "%X %x" "13 43"

Expected behavior

Some (19, 67)

Actual behavior

Some (13, 43)

Known workarounds

None.

Related information

• Operating system: Windows
• Version: 1.1.7
• .NET Runtime, CoreCLR or Mono Version: F# Interactive version 11.4.2.0 for F# 5.0

[gusty]

See #442 for a repro for %o

[gusty]

Thanks for reporting this issue.

#443 is a tentative fix