diff --git a/runtime/doc/vimtutor.1 b/runtime/doc/vimtutor.1
index 87f0978..7f32004 100644
--- a/runtime/doc/vimtutor.1
+++ b/runtime/doc/vimtutor.1
@@ -19,11 +19,12 @@
 is useful for people that want to learn their first
 .B Vim
 commands.
-The optional [language] argument is the two-letter name of a language, like
-"it" or "es".
+The optional [ISO639] argument is the two or three letter name of a language,
+like "it" or "es".
 .PP
 .B Vimtutor
-only opens temporary copies of the original tutor files, there is no danger of overwriting the lessons.
+only opens temporary copies of the original tutor files, there is no danger
+of overwriting the lessons.
 .PP
 .B Vim
 is always started in
@@ -32,7 +33,8 @@
 .SH OPTIONS
 .TP
 .BR \-l ", " \-\-language =\fIISO639\fR
-Set the two or three letter language code. E.g. 'it', 'es', 'bar'. Defaults to language of locale if available, else to English.
+Set the two or three letter language code. E.g. 'it', 'es', 'bar'.
+Defaults to language of locale if available, else to English.
 .TP
 .BR \-c ", " \-\-chapter =\fINUMBER\fR
 Set the chapter number. Defaults to chapter one.
@@ -75,7 +77,7 @@
 .fi
 .SH FILES
 .TP 15
-/usr/local/share/vim/vim??/tutor/tutor[.language]
+/usr/local/share/vim/vim??/tutor/tutor1[.language]
 The
 .B Vimtutor
 chapter one text file(s).
@@ -93,7 +95,8 @@
 text file.
 .SH AUTHOR
 .B The Vi Tutorial
-was originally written for Vi by Michael C. Pierce and Robert K. Ware, Colorado School of Mines using ideas supplied by Charles Smith, Colorado State University.
+was originally written for Vi by Michael C. Pierce and Robert K. Ware, Colorado
+School of Mines using ideas supplied by Charles Smith, Colorado State University.
 .B E-mail: bware@mines.colorado.edu (now invalid).
 .PP
 Modified for