code: improve log readibility

lflex_celcat_survival/events.py

@@ -54,7 +54,7 @@ class FilteredCelcatEvents:
             logging.warning('The number of time slots fetched from CELCAT does not match the expected number of time slots for some courses')
             logging.warning(f'\n{fetch_problem_df}')
 
-            logging.warning('\nDetails of the involved time slots:')
+            logging.warning('Details of the involved time slots:')
             problematic_courses = fetch_problem_df[['course_request_id']]
             problematic_time_slots = problematic_courses.merge(self.df, how='inner', on='course_request_id')
             problematic_time_slots = problematic_time_slots.sort_values(by=['course_request_id', 'start'])[['course_request_id', 'module_apogee', 'module_readable', 'start', 'end', 'course_type', 'group']]