Update error message for java_abstract_services => java_generic_services

Apparently the option name changed.

[kenton, 2011-01-23 22:37:59]

LGTM, submitted

On Tue, Nov 23, 2010 at 5:56 PM, <sgk@google.com> wrote:

> Reviewers: kenton,
>
> Description:
> Apparently the option name changed.
>
> Please review this at http://codereview.appspot.com/3298041/
>
> Affected files:
>  M compiler/protoc-gen-capnproto-java.cc
>
>
> Index: compiler/protoc-gen-capnproto-java.cc
> ===================================================================
> --- a/compiler/protoc-gen-capnproto-java.cc
> +++ b/compiler/protoc-gen-capnproto-java.cc
> @@ -579,7 +579,7 @@
>                 compiler::OutputDirectory* output_directory,
>                 string* error) const {
>     if (file->service_count() > 0 &&
> file->options().java_generic_services()) {
> -      *error = "You must set \"option java_abstract_services = false;\" to
> use "
> +      *error = "You must set \"option java_generic_services = false;\" to
> use "
>                "Captain Proto with this file in Java.";
>       return false;
>     }
>
>
>