--- a/doc/hgrc.5.txt
+++ b/doc/hgrc.5.txt
@@ -401,8 +401,8 @@ ui::
username;;
The committer of a changeset created when running "commit".
Typically a person's name and email address, e.g. "Fred Widget
- <fred@example.com>". Default is $EMAIL. If no default is found,
- the username have to be specified manually.
+ <fred@example.com>". Default is $EMAIL. If no default is found, or the
+ configured username is empty, it has to be specified manually.
verbose;;
Increase the amount of output printed. True or False. Default is False.