From 624f341dc7f7a23fbd173623c8f0d983a425b0e8 Mon Sep 17 00:00:00 2001
From: Martin Quinson <martin.quinson@ens-rennes.fr>
Date: Thu, 16 May 2019 15:54:57 +0200
Subject: [PATCH] small doc improvement

---
 docs/source/Configuring_SimGrid.rst | 5 ++++-
 src/simgrid/sg_config.cpp           | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/docs/source/Configuring_SimGrid.rst b/docs/source/Configuring_SimGrid.rst
index ac9affccfb..9bed9da73b 100644
--- a/docs/source/Configuring_SimGrid.rst
+++ b/docs/source/Configuring_SimGrid.rst
@@ -79,7 +79,10 @@ Existing Configuration Items
 
 .. note::
   The full list can be retrieved by passing ``--help`` and
-  ``--help-cfg`` to an executable that uses SimGrid.
+  ``--help-cfg`` to an executable that uses SimGrid. Try passing
+  ``help`` as a value to get the list of values accepted by a given
+   option. For example, ``--cfg=plugin:help`` will give you the list
+   of plugins available in your installation of SimGrid.
 
 - **clean-atexit:** :ref:`cfg=clean-atexit`
 
diff --git a/src/simgrid/sg_config.cpp b/src/simgrid/sg_config.cpp
index 816d265631..1cbf235da9 100644
--- a/src/simgrid/sg_config.cpp
+++ b/src/simgrid/sg_config.cpp
@@ -68,7 +68,10 @@ static void sg_config_cmd_line(int *argc, char **argv)
       XBT_HELP("\n"
                "Each of these configurations can be used by adding\n"
                "    --cfg=<option name>:<option value>\n"
-               "to the command line.\n"
+               "to the command line. Try passing \"help\" as a value\n"
+               "to get the list of values accepted by a given option.\n"
+               "For example, \"--cfg=plugin:help\" gives you the list of\n"
+               "plugins available in your installation of SimGrid.\n"
                "\n"
                "For more information, please refer to:\n"
                "   --help-aliases for the list of all option aliases.\n"
-- 
2.20.1