suspension: leave ^Z unbound by default -- just ^T^Z will suspend nano

Suggest in the documentation how to get a one-keystroke Suspend.

doc/nano.1

@@ -328,7 +328,9 @@ Don't show the two help lines at the bottom of the screen.
 Make Ctrl+Right and Ctrl+Delete stop at word ends instead of beginnings.
 .TP
 .BR \-z ", " \-\-suspendable
-Obsolete option.  Ignored.  Suspension is enabled by default.
+Obsolete option; ignored.  Suspension is enabled by default,
+reachable via \fB^T^Z\fR.  (If you want a plain \fB^Z\fR to
+suspend nano, add \fBbind ^Z suspend main\fR to your nanorc.)
 .TP
 .BR \-% ", " \-\-stateflags
 Use the top-right corner of the screen for showing some state flags:

doc/nano.texi

@@ -671,7 +671,9 @@ instead of beginnings.
 
 @item -z
 @itemx --suspendable
-Obsolete option.  Ignored.  Suspension is enabled by default.
+Obsolete option; ignored.  Suspension is enabled by default,
+reachable via @kbd{^T^Z}.  (If you want a plain @kbd{^Z} to
+suspend nano, add @code{bind ^Z suspend main} to your nanorc.)
 
 @item -%
 @itemx --stateflags
@@ -1093,7 +1095,9 @@ Use this color combination for the vertical guiding stripe.
 @xref{@code{set keycolor}} for valid color names.
 
 @item set suspendable
-Obsolete option.  Ignored.  Suspension is enabled by default.
+Obsolete option; ignored.  Suspension is enabled by default,
+reachable via @kbd{^T^Z}.  (If you want a plain @kbd{^Z} to
+suspend nano, add @code{bind ^Z suspend main} to your nanorc.)
 
 @item set tabsize @var{number}
 Use a tab size of @var{number} columns.  The value of @var{number} must be

doc/nanorc.5

@@ -339,7 +339,9 @@ Use this color combination for the vertical guiding stripe.
 See \fBset titlecolor\fR for more details.
 .TP
 .B set suspendable
-Obsolete option.  Ignored.  Suspension is enabled by default.
+Obsolete option; ignored.  Suspension is enabled by default,
+reachable via \fB^T^Z\fR.  (If you want a plain \fB^Z\fR to
+suspend nano, add \fBbind ^Z suspend main\fR to your nanorc.)
 .TP
 .B set tabsize \fInumber\fR
 Use a tab size of \fInumber\fR columns.  The value of \fInumber\fP must be

doc/sample.nanorc.in

@@ -252,6 +252,9 @@
 ## === Key bindings ===
 ## For all details, see 'man nanorc', section REBINDING KEYS.
 
+## If you want to suspend nano with one keystroke (instead of with ^T^Z):
+# bind ^Z suspend main
+
 ## The <Ctrl+Delete> keystroke deletes the word to the right of the cursor.
 ## On some terminals the <Ctrl+Backspace> keystroke produces ^H, which is
 ## the ASCII character for backspace, so it is bound by default to the
@@ -272,9 +275,6 @@
 # unbind M-T main
 ## (Those functions are still accessible through ^T^J and ^T^V.)
 
-## If you sometimes hit ^Z by accident (you can still suspend with ^T^Z):
-# unbind ^Z main
-
 ## For quickly uppercasing or lowercasing the word under the cursor.
 ## (These effectively do a Ctrl+Right followed by a Shift+Ctrl+Left,
 ## and then pipe the selected text through a sed command.)

src/global.c

@@ -1334,6 +1334,7 @@ void shortcut_init(void)
 #ifndef NANO_TINY
 	add_to_sclist(MMAIN, "M-T", 0, cut_till_eof, 0);
 	add_to_sclist(MEXECUTE, "^V", 0, cut_till_eof, 0);
+	add_to_sclist(MEXECUTE, "^Z", 0, do_suspend_void, 0);
 	add_to_sclist(MMAIN, "M-D", 0, count_lines_words_and_characters, 0);
 #else
 	add_to_sclist(MMAIN, "M-H", 0, do_help, 0);
@@ -1349,7 +1350,6 @@ void shortcut_init(void)
 		add_to_sclist(MMOST|MBROWSER|MHELP|MYESNO, "^L", 0, full_refresh, 0);
 	else
 		add_to_sclist(MMOST|MBROWSER|MYESNO, "^L", 0, full_refresh, 0);
-	add_to_sclist(MMAIN|MEXECUTE, "^Z", 0, do_suspend_void, 0);
 
 #ifndef NANO_TINY
 	/* Group of "Appearance" toggles. */