BUG : Correction on metaschema in json_schemas

python_src/diapotb/ConfigFile.py

@@ -270,8 +270,8 @@ class ConfigFile():
                 with open(schema_file, "r") as sch:
                     data_schema = json.load(sch)
             except Exception as err:
-                logger.critical("Impossible to read or load JSON configuration schema : {err}. Check its path and content."\
-                                .format(err=self._config_file))
+                logger.critical("Impossible to read or load JSON configuration schema : {name}. Check its path and content, exception is {err}"\
+                                .format(name=self._config_file, err=err))
                 quit()
 
             # Check Json file

python_src/diapotb/share/json_schemas/schema_MultiSlc.json

 {    
-    "$schema": "http://json-schema.org/draft-07/schema#"
+    "$schema": "http://json-schema.org/draft-07/schema#",
     "title": "JSON SCHEMA for MultiSlc",
     "description": "JSON organization for the script SAR_MultiSlc.py",