# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 2019-12-12 23:10:44
# Node ID 774cee0e95c6c738897e6ed1603b9062beb92840
# Parent  2e672ccc22201a1bed5f11bd519b631a08919e4a

amend: use cmdutil.check_at_most_one_arg()

Differential Revision: https://phab.mercurial-scm.org/D7635

diff --git a/mercurial/cmdutil.py b/mercurial/cmdutil.py
--- a/mercurial/cmdutil.py
+++ b/mercurial/cmdutil.py
@@ -1056,13 +1056,12 @@ def bailifchanged(repo, merge=True, hint
 
 def logmessage(ui, opts):
     """ get the log message according to -m and -l option """
+
+    check_at_most_one_arg(opts, b'message', b'logfile')
+
     message = opts.get(b'message')
     logfile = opts.get(b'logfile')
 
-    if message and logfile:
-        raise error.Abort(
-            _(b'options --message and --logfile are mutually exclusive')
-        )
     if not message and logfile:
         try:
             if isstdiofilename(logfile):
diff --git a/tests/test-amend.t b/tests/test-amend.t
--- a/tests/test-amend.t
+++ b/tests/test-amend.t
@@ -129,7 +129,7 @@ Amend with editor
 
   $ echo FOO > $TESTTMP/msg
   $ hg amend -l $TESTTMP/msg -m BAR
-  abort: options --message and --logfile are mutually exclusive
+  abort: cannot specify both --message and --logfile
   [255]
   $ hg amend -l $TESTTMP/msg
   saved backup bundle to $TESTTMP/repo1/.hg/strip-backup/974f07f28537-edb6470a-amend.hg (obsstore-off !)