diff --git a/mercurial/bookmarks.py b/mercurial/bookmarks.py
--- a/mercurial/bookmarks.py
+++ b/mercurial/bookmarks.py
@@ -480,8 +480,7 @@
 
     Each elements of lists in result tuple is tuple "(bookmark name,
     changeset ID on source side, changeset ID on destination
-    side)". Each changeset IDs are 40 hexadecimal digit string or
-    None.
+    side)". Each changeset ID is a binary node or None.
 
     Changeset IDs of tuples in "addsrc", "adddst", "differ" or
      "invalid" list may be unknown for repo.
diff --git a/mercurial/exchange.py b/mercurial/exchange.py
--- a/mercurial/exchange.py
+++ b/mercurial/exchange.py
@@ -730,9 +730,9 @@
     return _processcompared(pushop, ancestors, explicit, remotebookmark, comp)
 
 def _processcompared(pushop, pushed, explicit, remotebms, comp):
-    """take decision on bookmark to pull from the remote bookmark
+    """take decision on bookmarks to push to the remote repo
 
-    Exist to help extensions who want to alter this behavior.
+    Exists to help extensions alter this behavior.
     """
     addsrc, adddst, advsrc, advdst, diverge, differ, invalid, same = comp