$ hg log -r 2:4 changeset: 2:fef857204a0c user: Bryan O'Sullivan <bos@serpentine.com> date: Sat Aug 16 22:05:04 2008 +0200 summary: Introduce un errore in hello.c. changeset: 3:0272e0d5a517 user: Bryan O'Sullivan <bos@serpentine.com> date: Sat Aug 16 22:08:02 2008 +0200 summary: Induce make a generare l'eseguibile finale dal file .o. changeset: 4:2278160e78d4 tag: tip user: Bryan O'Sullivan <bos@serpentine.com> date: Sat Aug 16 22:16:53 2008 +0200 summary: Aggiusta i commenti.