docs: slightly reword the notice about the changed defaults since 4.0

doc/nano.1

@@ -27,8 +27,8 @@ nano \- Nano's ANOther editor, inspired by Pico
 
 .SH NOTICE
 Starting with version 4.0, \fBnano\fR no longer hard-wraps an overlong
-line by default, uses smooth scrolling by default, and by default makes
+line by default.  It further uses smooth scrolling by default, and by
-use of the line below the title bar.
+default includes the line below the title bar into the editing area.
 .sp
 If you want the old, Pico behavior back, you can use \fB\-\-breaklonglines\fR,
 \fB\-\-jumpyscrolling\fR, and \fB\-\-emptyline\fR (or \fB\-bje\fR for short).

doc/nano.texi

@@ -97,8 +97,8 @@ as is reasonable while offering a superset of Pico's functionality.
 Pico differ.
 
 Starting with version 4.0, @command{nano} no longer hard-wraps an overlong
-line by default, uses smooth scrolling by default, and by default makes
+line by default.  It further uses smooth scrolling by default, and by
-use of the line below the title bar.
+default includes the line below the title bar into the editing area.
 
 If you want the old, Pico behavior back, you can use the
 following options: @option{--breaklonglines},

doc/nanorc.5

@@ -23,8 +23,8 @@ nanorc \- GNU nano's configuration file
 
 .SH NOTICE
 Starting with version 4.0, \fBnano\fR no longer hard-wraps an overlong
-line by default, uses smooth scrolling by default, and by default makes
+line by default.  It further uses smooth scrolling by default, and by
-use of the line below the title bar.
+default includes the line below the title bar into the editing area.
 .sp
 If you want the old, Pico behavior back, you can use \fBset breaklonglines\fR,
 \fBset jumpyscrolling\fR, and \fBset emptyline\fR.