clrmd: LinuxLiveDataReader.GetVersionInfo does not produce the correct answer

ClrMd 1.1.46104 (also reproduces on latest master), .NET Core 2.1 on Linux x64 (Ubuntu 18.04)

Unhandled Exception: System.ArgumentOutOfRangeException: Version's parameters must be greater than or equal to zero.
Parameter name: revision
   at System.Version..ctor(Int32 major, Int32 minor, Int32 build, Int32 revision)
   at Microsoft.Diagnostics.Runtime.Linux.LinuxLiveDataReader.ParseForVersion(String s)
   at Microsoft.Diagnostics.Runtime.Linux.LinuxLiveDataReader.GetVersionInfo(UInt64 addr, VersionInfo& version)
   at Microsoft.Diagnostics.Runtime.ModuleInfo.get_Version()
   at Microsoft.Diagnostics.Runtime.DataTargetImpl.InitVersions()
   at Microsoft.Diagnostics.Runtime.DataTargetImpl.get_ClrVersions()
   at (my code)

This happens when using a self-contained deployment and the directory name is a GUID, separated with dashes, like “909B593B-4E9B-4294-AC28-FD5A369FA776”.

Looking at what’s happening in LinuxLiveDataReader.GetVersionInfo, it’s trying to parse the directory name containing .so files as a version (and apparently accepts any hexadecimal numbers, too!) but this obviously doesn’t work for self-contained deployments: the directory name may be a valid version, but not the CLR version.