Task summary no longer available in debug log

[bouweandela]

There used to be a summary of the generated tasks including all preprocessor settings etc. available in the debug log. It looks like this went missing in #957 and #962.

Example:

2021-02-02 11:40:11,183 UTC [12256] DEBUG   esmvalcore._main:101 Recipe summary:
DiagnosticTask: map/script1
script: examples/diagnostic.py
settings:
{'auxiliary_data_dir': '/home/bandela/esmvaltool_extra_data',
 'log_level': 'info',
 'output_file_type': None,
 'plot_dir': '/home/bandela/esmvaltool_output/recipe_python_20210202_114010/plots/map/script1',
 'profile_diagnostic': False,
 'quickplot': {'cmap': 'Reds', 'plot_type': 'pcolormesh'},
 'realms': ['atmos'],
 'recipe': 'recipe_python.yml',
 'run_dir': '/home/bandela/esmvaltool_output/recipe_python_20210202_114010/run/map/script1',
 'script': 'script1',
 'themes': ['phys'],
 'version': '2.1.0',
 'work_dir': '/home/bandela/esmvaltool_output/recipe_python_20210202_114010/work/map/script1',
 'write_netcdf': True,
 'write_plots': True}
ancestors:
        PreprocessingTask:
        order: ['fix_file', 'load', 'fix_metadata', 'concatenate', 'cmor_check_metadata', 'clip_start_end_year', 'fix_data', 'cmor_check_dat
a', 'extract_month', 'save', 'cleanup']
        PreprocessorFile: /home/bandela/esmvaltool_output/recipe_python_20210202_114010/preproc/map/tas/CMIP5_CanESM2_Amon_historical_r1i1p1
_tas_2000-2000.nc
        {'cleanup': {'remove': ['/home/bandela/esmvaltool_output/recipe_python_20210202_114010/preproc/map/tas/CMIP5_CanESM2_Amon_historical
_r1i1p1_tas_2000-2000_fixed']},
         'clip_start_end_year': {'end_year': 2000, 'start_year': 2000},
         'cmor_check_data': {'check_level': <CheckLevels.DEFAULT: 3>,
                             'cmor_table': 'CMIP5',
                             'frequency': 'mon',
                             'mip': 'Amon',
                             'short_name': 'tas'},
         'cmor_check_metadata': {'check_level': <CheckLevels.DEFAULT: 3>,
                                 'cmor_table': 'CMIP5',
                                 'frequency': 'mon',
                                 'mip': 'Amon',
                                 'short_name': 'tas'},
         'concatenate': {},
         'extract_month': {'month': 1},
         'fix_data': {'check_level': <CheckLevels.DEFAULT: 3>,
                      'dataset': 'CanESM2',
                      'frequency': 'mon',
                      'mip': 'Amon',
                      'project': 'CMIP5',
                      'short_name': 'tas'},
         'fix_file': {'dataset': 'CanESM2',
                      'mip': 'Amon',
                      'output_dir': '/home/bandela/esmvaltool_output/recipe_python_20210202_114010/preproc/map/tas/CMIP5_CanESM2_Amon_histor
ical_r1i1p1_tas_2000-2000_fixed',
                      'project': 'CMIP5',

... etc ...