[Fix] avoid parse error with common omz global aliases, in `nvm_print_color_code`
[Fix] avoid parse error with common omz global aliases, in `nvm_print_color_code`

Fixes #2362. Fixes #2372.

ljharb/nvm,creationix/nvm,PeterDaveHello/nvm,creationix/nvm,ljharb/nvm,PeterDaveHello/nvm