$ hg pull
pulling from http://hg.python.org/cpython
searching for changes
adding changesets
adding manifests
adding file changes
added 3265 changesets with 6204 changes to 1117 files
(run ‘hg update’ to get a working copy)

$ hg summary
parent: 70924:d1d5a7392e39 
(merge 3.2) Issue #12383: skip test_empty_env() if compiled is compiled in
branch: default
commit: 3 unknown (clean)
update: 2705 new changesets (update)

$ hg update
991 files updated, 0 files merged, 12 files removed, 0 files unresolved

$ hg summary
parent: 74189:456b02030100 tip
don’t fail if CLOEXEC doesn’t exist
branch: default
commit: 3 unknown (clean)
update: (current)