[master] 78122980f Forego shell syntax highlighting, not installed everywhere.

[Poul-Henning Kamp]

commit 78122980fec456267c25aec74804abd076782777
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Mon Feb 22 13:33:05 2021 +0000

    Forego shell syntax highlighting, not installed everywhere.

diff --git a/doc/sphinx/reference/shell_tricks.rst b/doc/sphinx/reference/shell_tricks.rst
index 471706575..89e55e559 100644
--- a/doc/sphinx/reference/shell_tricks.rst
+++ b/doc/sphinx/reference/shell_tricks.rst
@@ -8,7 +8,7 @@ All the varnish programs can be invoked with the single
 argument ``--optstring`` to request their `getopt()`
 specification, which simplifies wrapper scripts:
 
-.. code-block:: shell
+.. code-block:: text
 
     optstring=$(varnishfoo --optstring)