Bootstrapping with choosenim fails

[dom96]

./koch boot -d:release
iteration: 1
compiler/nim0 c -d:release --nimcache:nimcache/r_macosx_amd64 compiler/nim.nim
     Error: Requested executable is missing. (Path: /Users/tiber/.choosenim/toolchains/nim-#devel/bin/nim0)
      Info: If unexpected, please report this error to https://github.com/dom96/choosenim
FAILURE

Reported by @Yardanico

Possible solutions:

• Treat re"nim[0-9]" as nim in the proxy exe.

[genotrance]

Is this still an issue? Never seen this happen before.

[dom96]

I think this was caused by koch copying the Nim proxy exe. Probably not something we should resolve in choosenim.