Only read the first line for shbang.

[smoser]

I noticed this when I was playing with a shbang program like:

 #!/usr/bin/env busybox sh
 echo hello world

Melange would give a warning like this:

 Error reading shbang from usr/bin/hello-busybox:
    a shbang of only '/usr/bin/env' with multiple arguments
       (6 /usr/bin/env busybox sh echo "hello world")

[imjasonh]

Is there a test you could add to demonstrate the problem, and that this is the fix?

Do you have an idea if there are packages in the wild that will produce different provideses with this change? Or is this just about avoiding the misleading warning?

[smoser]

Is there a test you could add to demonstrate the problem, and that this is the fix?

Do you have an idea if there are packages in the wild that will produce different provideses with this change? Or is this just about avoiding the misleading warning?

i could add a test.l I'm pretty sure this only affects the error path, in which there will be no provides generated.

[smoser]

@imjasonh got around to adding a test, and i think fixed another bug. we'll see if it passes the other tests I didn't write (or run) just now.