add comment to check with Jesse

Author: boulderdaze

cime_config/buildnml

@@ -389,6 +389,7 @@ def buildnml(case, caseroot, compname):
                         must be located in the caseroot if the ATM library build is successful."
                 raise CamBuildnmlError(emsg)
 
+            # TODO(JIWON) Check with Jesse if we want to check directory exists
             os.makedirs(musica_config_dest_dir, exist_ok=True)
             for root, _, files in os.walk(musica_config_src_dir):
                 rel_path = os.path.relpath(root, musica_config_src_dir)