--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -1532,7 +1532,7 @@ def incoming(ui, repo, source="default",
incoming = repo.findincoming(other, force=opts["force"])
if not incoming:
ui.status(_("no changes found\n"))
- return
+ return 1
cleanup = None
try:
@@ -1812,7 +1812,7 @@ def outgoing(ui, repo, dest=None, **opts
o = repo.findoutgoing(other, force=opts['force'])
if not o:
ui.status(_("no changes found\n"))
- return
+ return 1
o = repo.changelog.nodesbetween(o, revs)[0]
if opts['newest_first']:
o.reverse()