gettext.sh can't be sourced from zsh using the default zsh options

[Sergio Talens-Oliag]

Using zsh with the option FUNCTION_ARGZERO set (the default), the gettext.sh
script can't be sourced.

I'm attaching a simple patch to fix it, see the explanation inside the patch.
I've tested it against some bourne shells and all works as expected after the
change.

Greetings,

  Sergio.

-- 
Sergio Talens-Oliag <address@hidden>   <http://people.debian.org/~sto/>
Key fingerprint = 29DF 544F  1BD9 548C  8F15 86EF  6770 052B  B8C1 FA69

gettext.sh.in.patch
Description: Text document