spacemacs initialisation on windows ignores customisation of projectile-generic-command

[puzl]

Description

spacemacs initialisation on windows ignores customisation of projectile-generic-command

Reproduction guide 🪲

• Start Emacs
  On windows
  customise projectile-generic-command
  restart emacs
  examine variable projectile-generic-command
  see that customisation isn't applied

Observed behaviour: 👀 💔
Can't tune projectile for your local system

Expected behaviour: ❤️ 😄
Projectile customisations should be applied

System Info 💻

• OS: windows-nt
• Emacs: 25.1.1
• Spacemacs: 0.200.3
• Spacemacs branch: master (rev. 5ae2605)
• Graphic display: t
• Distribution: spacemacs
• Editing style: vim
• Completion: helm
• Layers:

(version-control python org markdown emacs-lisp spell-checking gtags semantic
                 (syntax-checking :variables flycheck-disabled-checkers
                                  '(c/c++-clang c/c++-gcc)
                                  flycheck-cppcheck-checks "style")
                 (c-c++ :variables c-c++-default-mode-for-headers 'c++-mode)
                 (auto-completion :variables auto-completion-enable-help-tooltip t auto-completion-emable-snippets-in-popup t auto-completion-enable-sort-by-usage t)
                 (shell :variables shell-default-height 30 shell-default-term-shell "/bin/bash" shell-default-position 'bottom))

• System configuration features: XPM JPEG TIFF GIF PNG RSVG SOUND NOTIFY ACL GNUTLS LIBXML2 ZLIB TOOLKIT_SCROLL_BARS MODULES

Backtrace 🐾

[puzl]

I have a fix for this. Will submit a PR soon.

[TheBB]

This is just another aspect of #5170.