patchcontrib/completion: fix zsh completion regression

From: Dimitar Roustchev <dimitar+github@pagerduty.com>

From: Felipe Contreras <felipe.contreras@gmail.com> @ 2021-08-16  9:19 UTC
[1]

Despite 0b18023 addressing a regression from 59d85a2, the issue described in [1] still persists as described:

  compdef _git ga=git-add
  ga <tab>
  ga __git_find_on_cmdline:[:16: unknown condition: -lt

The suggested fix to set __git_cmd_idx for the _git function wrapper worked for me on:

- zsh v5.8.1
- git v2.40.1

Signed-off-by: Dimitar Roustchev <dimitar@pagerduty.com>

[1] https://lore.kernel.org/all/20210816091935.548555-1-felipe.contreras@gmail.com/
---
    contrib/completion: fix zsh completion regression
    
    Despite 0b18023 addressing a regression from 59d85a2, the issue
    described in
    https://lore.kernel.org/all/20210816091935.548555-1-felipe.contreras@gmail.com/T/
    still persists as described:
    
    compdef _git ga=git-add ga ga __git_find_on_cmdline:[:16: unknown
    condition: -lt
    
    The suggested fix to set __git_cmd_idx for the _git function wrapper
    worked for me on:
    
     * zsh v5.8.1
     * git v2.40.1

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1499%2Fdroustchev-pd%2Ffix-__git_cmd_idx-regression-zsh-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1499/droustchev-pd/fix-__git_cmd_idx-regression-zsh-v1
Pull-Request: https://github.com/git/git/pull/1499

 contrib/completion/git-completion.zsh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)