Extra facets added for EMAC to map o3, tro3 and aps (#2501)

Co-authored-by: Manuel Schlund <[email protected]>

esmvalcore/cmor/_fixes/emac/_base_fixes.py

@@ -38,11 +38,8 @@ def get_cube(self, cubes, var_name=None):
  raise ValueError(
  f"No variable of {var_names} necessary for the extraction/"
  f"derivation the CMOR variable '{self.vardef.short_name}' is "
- f"available in the input file. Hint: in case you tried to extract "
- f"a 3D variable defined on pressure levels, it might be necessary "
- f"to define the EMAC variable name in the recipe (e.g., "
- f"'raw_name: tm1_p39_cav') if the default number of pressure "
- f"levels is not available in the input file."
+ f"available in the input file. Please specify a valid `raw_name` "
+ f"in the recipe or extra facets file."
  )