Comment cleanup.

doorstop/core/item.py

@@ -396,7 +396,7 @@ def get_issues(self, **kwargs):
         # Check external references
         if settings.CHECK_REF:
             try:
-                # TODO: find_ref shouldn't get 'ignored' internally
+                # TODO: find_ref should get 'self.tree.vcs.ignored' internally
                 self.find_ref(ignored=self.tree.vcs.ignored
                               if self.tree else None)
             except DoorstopError as exc:

doorstop/core/tree.py

@@ -95,7 +95,7 @@ def from_list(documents, root=None):
 
     def __init__(self, document, parent=None, root=None):
         self.document = document
-        self.root = root or document.root  # enables testing
+        self.root = root or document.root  # enables mock testing
         self.parent = parent
         self.children = []
         self._vcs = None
@@ -107,7 +107,7 @@ def __repr__(self):
         return "<Tree {}>".format(self)
 
     def __str__(self):
-        # Build parent prefix string (getattr to support testing)
+        # Build parent prefix string (enables mock testing)
         prefix = getattr(self.document, 'prefix', self.document)
         # Build children prefix strings
         children = ", ".join(str(c) for c in self.children)