Can someone explain to me why parsing of the shebang line changed? ...for the worse in my opinion.

I want to do this in FreeBSD6:
#!/usr/bin/env python -u
I can't do this because the shebang is evaluated as /usr/bin/env 'python -u' which causes an error. So I read the man page for env and find this:

Note that the way the kernel parses the `#!' (first line) of an interpreted script has changed as of FreeBSD 6.0..., the first line should be changed to: #!/usr/bin/env -S /usr/local/bin/php -n -q -dsafe_mode=0

I changed my shebang line by adding -S and it works fine in FreeBSD6 but is not as portable. The -S option for env is new for FreeBSD6. This means my code is now not portable between FreeBSD6 and other operating systems including FreeBSD5.

I stay with FreeBSD because I like the direction, practicality, and the people. Changes are usually made for the better but in this case I am left with one question. Why?


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