Typo

core/dbt/parser/sources.py

@@ -344,23 +344,23 @@ def get_unused_msg(
         msg.append('')
         return '\n'.join(msg)
 
-def merge_time(base: Optional[Time], update: Optional[Time]) -> Optional[Time]:
+def merge_freshness_time_thresholds(base: Optional[Time], update: Optional[Time]) -> Optional[Time]:
     if base is None and update is None:
         return None
     elif base is None and update is not None:
         return update
     elif base is not None and update is None:
         return base
     else:
-        # base and update not none
+        # base and update are not none
         return base.merged(update)
 
 def merge_freshness(
     base: Optional[FreshnessThreshold], update: Optional[FreshnessThreshold]
 ) -> Optional[FreshnessThreshold]:
     if base is not None and update is not None:
         merged_freshness = base.merged(update)
-        # merge one level deeper error and warn after threshold
+        # merge one level deeper the error_after and warn_after thresholds
         merged_error_after = merge_time(base.error_after, update.error_after)
         merged_warn_after = merge_time(base.warn_after, update.warn_after)