in reply to Can I convince Git Bash to use a specific version of Perl

What about using bash to write the hook? 
#!/bin/bash
/path/to/my/perl /path/to/my/script -- "$@"

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map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

In Section Seekers of Perl Wisdom