Doesn't compile with 1.6.0 on macOS
```
 $ nimble install inim --verbose
    Reading official package list
Downloading https://github.com/inim-repl/INim using git
    Cloning latest tagged version: v0.6.1
  Verifying dependencies for inim@0.6.1
    Reading official package list
   Checking for cligen@>= 1.2.0
      Info: Dependency on cligen@>= 1.2.0 already satisfied
  Verifying dependencies for cligen@1.2.2
    Reading official package list
   Checking for noise@>= 0.1.4
      Info: Dependency on noise@>= 0.1.4 already satisfied
  Verifying dependencies for noise@0.1.4
 Installing inim@0.6.1
   Building inim/inim using c backend
  Executing ~/.nimble/bin/nim c --colors:on --noNimblePath -d:release -d:NimblePkgVersion=0.6.1 --path:~/.nimble/pkgs/cligen-1.2.2 --path:~/.nimble/pkgs/noise-0.1.4 -o:/var/folders/st/xh33tkfx0x329ltvx1c4j78m0000gn/T/nimble_49023/githubcom_inimreplINim/inim /var/folders/st/xh33tkfx0x329ltvx1c4j78m0000gn/T/nimble_49023/githubcom_inimreplINim/src/inim.nim
Hint: used config file '~/.choosenim/toolchains/nim-1.6.0/config/nim.cfg' [Conf]
Hint: used config file '~/.choosenim/toolchains/nim-1.6.0/config/config.nims' [Conf]
......................................................................................................
/private/var/folders/st/xh33tkfx0x329ltvx1c4j78m0000gn/T/nimble_49023/githubcom_inimreplINim/src/inim.nim(5, 15) Hint: duplicate import of 'strformat'; previous import here: /private/var/folders/st/xh33tkfx0x329ltvx1c4j78m0000gn/T/nimble_49023/githubcom_inimreplINim/src/inim.nim(4, 20) [DuplicateModuleImport]
....................
/private/var/folders/st/xh33tkfx0x329ltvx1c4j78m0000gn/T/nimble_49023/githubcom_inimreplINim/src/inim.nim(7, 1) Hint: duplicate import of 'sequtils'; previous import here: /private/var/folders/st/xh33tkfx0x329ltvx1c4j78m0000gn/T/nimble_49023/githubcom_inimreplINim/src/inim.nim(4, 51) [DuplicateModuleImport]
.
/private/var/folders/st/xh33tkfx0x329ltvx1c4j78m0000gn/T/nimble_49023/githubcom_inimreplINim/src/inim.nim(420, 9) Hint: 'n' is declared but not used [XDeclaredButNotUsed]
/private/var/folders/st/xh33tkfx0x329ltvx1c4j78m0000gn/T/nimble_49023/githubcom_inimreplINim/src/inim.nim(457, 11) Hint: 'n' is declared but not used [XDeclaredButNotUsed]
/private/var/folders/st/xh33tkfx0x329ltvx1c4j78m0000gn/T/nimble_49023/githubcom_inimreplINim/src/inim.nim(543, 21) Hint: 'echo_status' is declared but not used [XDeclaredButNotUsed]
................
/private/var/folders/st/xh33tkfx0x329ltvx1c4j78m0000gn/T/nimble_49023/githubcom_inimreplINim/src/inim.nim(627, 11) template/generic instantiation of `dispatch` from here
~/.nimble/pkgs/cligen-1.2.2/cligen.nim(768, 14) template/generic instantiation of `dispatchCf` from here
~/.nimble/pkgs/cligen-1.2.2/cligen.nim(745, 31) Error: expression 'dispatchmain(mergeParams([""], commandLineParams()), clUse, "", false, false,
             false)' has no type (or is ambiguous)
```

```
 $ nim -v
Nim Compiler Version 1.6.0 [MacOSX: amd64]
Compiled at 2021-10-19
Copyright (c) 2006-2021 by Andreas Rumpf

active boot switches: -d:release
```