updated docs

doc/dev.md

@@ -566,7 +566,7 @@ associated to the corresponding parameter:
 | Parameter     | Variable           | Type    | Descrition                    |
 |:--------------|:-------------------|:--------|:------------------------------|
 | --help        | *none*             | *n/a*   | Trigger help display directly and exit |
-| --version     | *none*             | *n/a*   | Trigger help display directly and exit |
+| --version     | *none*             | *n/a*   | Trigger version display directly and exit |
 | --module      | MANUAL_MODULE_LIST | string  | The following parameter will set a list of module to use |
 | --check-only  | CHECK_ONLY         | boolean | Activate check only mode      |
 | --jump        | JUMP               | boolean | Activate no checks mode       |
@@ -612,8 +612,25 @@ of the time a basic package manager configuration will be required to make it
 work.
 
 #### 10.1.4. ```load_configuration```
+That function loads configuration files. It will first check for configuration
+given as command line parameter. If no such parameter exists, it will try to
+load a file named ```conf/${HOSTNAME}.conf.sh```. If that file don't exists, the
+generic configuration will be loaded in the file ```conf/init.conf.sh```.
+
+If no configuration file can be found the function will trigger an error and
+exit the script.
 
 #### 10.1.5. ```process_commandline_and_vars```
+That function have the role to check the concistancy of command line parameters.
+It will triger errors if incompatible parameters have been given or if those
+parameters might lead to a non predictable situation.
+
+When those checks are done, the definitive module list to load is created. With
+that list we then checks the modules are available and do not contain the dash
+character.
+
+That function will also triger an error if the definitive module list is empty.
+
 
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