New comment by classabbyamp on void-packages repository

https://github.com/void-linux/void-packages/pull/42656#issuecomment-1459930695

Comment:
> I haven't checked if there's any convenient mechanism for concatenating arrays

for the same array, just `foo+=(new_element)`, for different:
```bash
$ foo=(foo bar baz)
$ bar=("${foo[@]}" idk)
$ declare -p foo
declare -a foo=([0]="foo" [1]="bar" [2]="baz")
$ declare -p bar
declare -a bar=([0]="foo" [1]="bar" [2]="baz" [3]="idk")
```