[gimp-web/testing] Indent the `with-files` shell script with spaces in 2.9.4 news.

[Jehan Pagès <jehanp src gnome org>]

commit 2b403803d602be6225f6e9813f65a008e0d08263
Author: Jehan <jehan girinstud io>
Date:   Thu Jul 14 01:07:49 2016 +0200

    Indent the `with-files` shell script with spaces in 2.9.4 news.

 .../news/2016-07-13 GIMP 2.9.4 Released/index.md   |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/content/news/2016-07-13 GIMP 2.9.4 Released/index.md b/content/news/2016-07-13 GIMP 2.9.4 
Released/index.md
index dc9f441..b1b9da9 100644
--- a/content/news/2016-07-13 GIMP 2.9.4 Released/index.md      
+++ b/content/news/2016-07-13 GIMP 2.9.4 Released/index.md      
@@ -148,7 +148,7 @@ A new macro `with-files` is now available in order to easily process multiple fi
 
 For instance, if you want to invert the colors of all PNG images in the current folder, then save them as 
JPEG, you could run the following from the command line:
 
-```bash
+```shell
 gimp -i -b '(with-files "*.png"
                 (gimp-invert layer)
                 (gimp-file-save 1 image layer
@@ -156,7 +156,7 @@ gimp -i -b '(with-files "*.png"
                     (string-append basename ".jpg")
                 )
             )
-           (gimp-quit 0)'
+            (gimp-quit 0)'
 ```
 Note: the name of the macro [may change](https://bugzilla.gnome.org/show_bug.cgi?id=726947#c12) before the 
release of v2.10.