`bzr commit -m DIRNAME` produces wrong warning about filename

[Alexander Belchenko]

C:\Temp>bzr init 6
Created a standalone tree (format: 1.14)

C:\Temp>cd 6
C:\Temp\6>

C:\Temp\6>bzr mkdir foo
added foo

C:\Temp\6>bzr ci -m foo
bzr: warning: The commit message is a file name: "foo".
(use --file "foo" to take commit message from that file)
Committing to: C:/Temp/6/
added foo
Committed revision 1.

Actually "foo" here is directory, not file. So that warning is simply wrong, and probably misleading.