; lispref nil/t markup fixes

4 files changed, 10 insertions, 10 deletions

diff --git a/doc/lispref/display.texi b/doc/lispref/display.texi
index 50069e3d1da..53c2014de05 100644
--- a/doc/lispref/display.texi
+++ b/doc/lispref/display.texi
@@ -50,7 +50,7 @@ screen is corrupted.
 
 @defun redraw-frame &optional frame
 This function clears and redisplays frame @var{frame}.  If @var{frame}
-is omitted or nil, it redraws the selected frame.
+is omitted or @code{nil}, it redraws the selected frame.
 @end defun
 
   Even more powerful is @code{redraw-display}:
@@ -1994,7 +1994,7 @@ defaults to the selected one.
 If the optional argument @var{first} is an integer, it denotes the index
 (starting with 0) of the first line of @var{window}'s glyph matrix to be
 returned.  Note that if @var{window} has a header line, the line with
-index 0 is that header line.  If @var{first} is nil, the first line to
+index 0 is that header line.  If @var{first} is @code{nil}, the first line to
 be considered is determined by the value of the optional argument
 @var{body}: If @var{body} is non-@code{nil}, this means to start with
 the first line of @var{window}'s body, skipping any header line, if
@@ -2003,7 +2003,7 @@ present.  Otherwise, this function will start with the first line of
 
 If the optional argument @var{last} is an integer, it denotes the index
 of the last line of @var{window}'s glyph matrix that shall be returned.
-If @var{last} is nil, the last line to be considered is determined by
+If @var{last} is @code{nil}, the last line to be considered is determined by
 the value of @var{body}: If @var{body} is non-@code{nil}, this means to
 use the last line of @var{window}'s body, omitting @var{window}'s mode
 line, if present.  Otherwise, this means to use the last line of
diff --git a/doc/lispref/frames.texi b/doc/lispref/frames.texi
index ec75361ace3..edddbddfbf3 100644
--- a/doc/lispref/frames.texi
+++ b/doc/lispref/frames.texi
@@ -1569,7 +1569,7 @@ window-system window in the stacking (Z-) order of the frame's display.
 
 If this is @code{above}, the frame's window-system window is displayed
 above all other window-system windows that do not have the @code{above}
-property set.  If this is nil, the frame's window is displayed below all
+property set.  If this is @code{nil}, the frame's window is displayed below all
 windows that have the @code{above} property set and above all windows
 that have the @code{below} property set.  If this is @code{below}, the
 frame's window is displayed below all windows that do not have the
@@ -1898,7 +1898,7 @@ These parameters supply forms of interactions between different frames.
 @item parent-frame
 If non-@code{nil}, this means that this frame is a child frame
 (@pxref{Child Frames}), and this parameter specifies its parent frame.
-If nil, this means that this frame is a normal, top-level frame.
+If @code{nil}, this means that this frame is a normal, top-level frame.
 
 @vindex delete-before, a frame parameter
 @item delete-before
@@ -2120,7 +2120,7 @@ this parameter.
 If non-@code{nil}, this frame's window-system window is drawn without
 decorations, like the title, minimize/maximize boxes and external
 borders.  This usually means that the window cannot be dragged, resized,
-iconified, maximized or deleted with the mouse.  If nil, the frame's
+iconified, maximized or deleted with the mouse.  If @code{nil}, the frame's
 window is usually drawn with all the elements listed above unless their
 display has been suspended via window manager settings.
 
diff --git a/doc/lispref/sequences.texi b/doc/lispref/sequences.texi
index 8d56e022d8f..b3c90af7236 100644
--- a/doc/lispref/sequences.texi
+++ b/doc/lispref/sequences.texi
@@ -1634,7 +1634,7 @@ argument @var{b} is given, the result of this operation is stored into
 @end defun
 
 @defun bool-vector-subsetp a b
-Return @code{t} if every @code{t} value in @var{a} is also t in
+Return @code{t} if every @code{t} value in @var{a} is also @code{t} in
 @var{b}, @code{nil} otherwise.  All arguments should be bool vectors of the
 same length.
 @end defun
diff --git a/doc/lispref/variables.texi b/doc/lispref/variables.texi
index 5bee0f9d82a..ad497a8b095 100644
--- a/doc/lispref/variables.texi
+++ b/doc/lispref/variables.texi
@@ -825,7 +825,7 @@ This function arranges for @var{watch-function} to be called whenever
 @var{operation} is a symbol representing the kind of change, one of:
 `set', `let', `unlet', `makunbound', and `defvaralias'.
 @var{where} is a buffer if the buffer-local value of the variable is
-being changed, nil otherwise.
+being changed, @code{nil} otherwise.
 @end defun
 
 @defun remove-variable-watch symbol watch-function
@@ -2061,7 +2061,7 @@ identifying a connection and the application using this connection.
 Property names might be @code{:application}, @code{:protocol},
 @code{:user} and @code{:machine}.  The property value of
 @code{:application} is a symbol, all other property values are
-strings.  All properties are optional; if @var{criteria} is nil, it
+strings.  All properties are optional; if @var{criteria} is @code{nil}, it
 always applies.  Example:
 
 @example
@@ -2079,7 +2079,7 @@ always applies.  Example:
 @end group
 @end example
 
-  If @var{criteria} is nil, it applies for all remote connections.
+  If @var{criteria} is @code{nil}, it applies for all remote connections.
 Therefore, the example above would be equivalent to
 
 @example