--- a/scripts/plot/plot.m
+++ b/scripts/plot/plot.m
@@ -21,102 +21,102 @@
 ## @deftypefn {Function File} {} plot (@var{args})
 ## This function produces two-dimensional plots.  Many different
 ## combinations of arguments are possible.  The simplest form is
-## 
+##
 ## @example
 ## plot (@var{y})
 ## @end example
-## 
+##
 ## @noindent
 ## where the argument is taken as the set of @var{y} coordinates and the
 ## @var{x} coordinates are taken to be the indices of the elements,
 ## starting with 1.
-## 
+##
 ## If more than one argument is given, they are interpreted as
-## 
+##
 ## @example
 ## plot (@var{x}, @var{y}, @var{fmt} ...)
 ## @end example
-## 
+##
 ## @noindent
 ## where @var{y} and @var{fmt} are optional, and any number of argument
 ## sets may appear.  The @var{x} and @var{y} values are
 ## interpreted as follows:
-## 
+##
 ## @itemize @bullet
 ## @item
 ## If a single data argument is supplied, it is taken as the set of @var{y}
 ## coordinates and the @var{x} coordinates are taken to be the indices of
 ## the elements, starting with 1.
-## 
+##
 ## @item
 ## If the first argument is a vector and the second is a matrix, the
 ## the vector is plotted versus the columns (or rows) of the matrix.
 ## (using whichever combination matches, with columns tried first.)
-## 
+##
 ## @item
 ## If the first argument is a matrix and the second is a vector, the
 ## the columns (or rows) of the matrix are plotted versus the vector.
 ## (using whichever combination matches, with columns tried first.)
-## 
+##
 ## @item
 ## If both arguments are vectors, the elements of @var{y} are plotted versus
 ## the elements of @var{x}.
-## 
+##
 ## @item
 ## If both arguments are matrices, the columns of @var{y} are plotted
 ## versus the columns of @var{x}.  In this case, both matrices must have
 ## the same number of rows and columns and no attempt is made to transpose
 ## the arguments to make the number of rows match.
-## 
+##
 ## If both arguments are scalars, a single point is plotted.
 ## @end itemize
-## 
+##
 ## If the @var{fmt} argument is supplied, it is interpreted as
 ## follows.  If @var{fmt} is missing, the default gnuplot line style
 ## is assumed.
-## 
+##
 ## @table @samp
 ## @item -
 ## Set lines plot style (default).
-## 
+##
 ## @item .
 ## Set dots plot style.
-## 
+##
 ## @item @@
 ## Set points plot style.
-## 
+##
 ## @item -@@
 ## Set linespoints plot style.
-## 
+##
 ## @item ^
 ## Set impulses plot style.
-## 
+##
 ## @item L
 ## Set steps plot style.
-## 
+##
 ## @item #
 ## Set boxes plot style.
-## 
+##
 ## @item ~
 ## Set errorbars plot style.
-## 
+##
 ## @item #~
 ## Set boxerrorbars plot style.
-## 
+##
 ## @item @var{n}
 ## Interpreted as the plot color if @var{n} is an integer in the range 1 to
 ## 6.
-## 
+##
 ## @item @var{nm}
 ## If @var{nm} is a two digit integer and @var{m} is an integer in the
 ## range 1 to 6, @var{m} is interpreted as the point style.  This is only
 ## valid in combination with the @code{@@} or @code{-@@} specifiers.
-## 
+##
 ## @item @var{c}
 ## If @var{c} is one of @code{"r"}, @code{"g"}, @code{"b"}, @code{"m"},
 ## @code{"c"}, or @code{"w"}, it is interpreted as the plot color (red,
 ## green, blue, magenta, cyan, or white).
-## 
+##
 ## @item +
 ## @itemx *
 ## @itemx o
@@ -124,10 +124,10 @@
 ## Used in combination with the points or linespoints styles, set the point
 ## style.
 ## @end table
-## 
+##
 ## The color line styles have the following meanings on terminals that
 ## support color.
-## 
+##
 ## @example
 ## Number  Gnuplot colors  (lines)points style
 ##   1       red                   *
@@ -137,21 +137,21 @@
 ##   5       cyan                house
 ##   6       brown            there exists
 ## @end example
-## 
+##
 ## Here are some plot examples:
-## 
+##
 ## @example
 ## plot (x, y, "@@12", x, y2, x, y3, "4", x, y4, "+")
 ## @end example
-## 
+##
 ## This command will plot @code{y} with points of type 2 (displayed as
 ## @samp{+}) and color 1 (red), @code{y2} with lines, @code{y3} with lines of
 ## color 4 (magenta) and @code{y4} with points displayed as @samp{+}.
-## 
+##
 ## @example
 ## plot (b, "*")
 ## @end example
-## 
+##
 ## This command will plot the data in the variable @code{b} will be plotted
 ## with points displayed as @samp{*}.
 ## @end deftypefn