local variable escapes into trap

[Akim Demaille]

Hi!

On the following script, the local variable $name of bar() hides the  
global $name when entering the trap.  I have observed that with  
several versions of Bash, including

> GNU bash, version 4.0.33(1)-release (i486-pc-linux-gnu)


FWIW, Zsh and Dash behave as I expected.

> % cat /tmp/foo.sh
> #! /bin/sh
>
> trap 'echo "trap: name=$name"' 0
>
> name=main
>
> bar ()
> {
>     local name=bar
>     exit 0
> }
>
> bar
> % bash /tmp/foo.sh
> trap: name=bar

Cheers.