strip trailing whitespace from most source files * NEWS, doc/interpreter/contributors.in, doc/interpreter/func.txi, doc/interpreter/genpropdoc.m, doc/interpreter/octave_logo.eps, doc/interpreter/plot.txi, doc/interpreter/stmt.txi, examples/data/Makefile.am, libinterp/corefcn/data.cc, libinterp/corefcn/debug.cc, libinterp/corefcn/error.cc, libinterp/corefcn/file-io.cc, libinterp/corefcn/gl-render.cc, libinterp/corefcn/graphics.cc, libinterp/corefcn/graphics.in.h, libinterp/corefcn/load-path.cc, libinterp/corefcn/pr-output.cc, libinterp/corefcn/pt-jit.cc, libinterp/corefcn/strfind.cc, libinterp/corefcn/toplev.cc, libinterp/corefcn/toplev.h, libinterp/corefcn/urlwrite.cc, libinterp/corefcn/variables.cc, libinterp/octave-value/ov-classdef.cc, libinterp/octave-value/ov-classdef.h, libinterp/octave.cc, libinterp/parse-tree/lex.h, libinterp/parse-tree/oct-parse.in.yy, libinterp/parse-tree/pt-classdef.h, liboctave/system/file-ops.cc, liboctave/system/oct-env.cc, m4/acinclude.m4, scripts/deprecated/finite.m, scripts/deprecated/fmod.m, scripts/deprecated/fnmatch.m, scripts/deprecated/luinc.m, scripts/deprecated/octave_tmp_file_name.m, scripts/deprecated/syl.m, scripts/deprecated/usage.m, scripts/general/inputParser.m, scripts/general/interp1.m, scripts/general/interp2.m, scripts/general/interp3.m, scripts/general/isequal.m, scripts/general/private/__isequal__.m, scripts/geometry/voronoi.m, scripts/image/image.m, scripts/image/imshow.m, scripts/image/ind2rgb.m, scripts/linear-algebra/bandwidth.m, scripts/linear-algebra/isbanded.m, scripts/miscellaneous/bzip2.m, scripts/miscellaneous/cast.m, scripts/miscellaneous/copyfile.m, scripts/miscellaneous/delete.m, scripts/miscellaneous/fullfile.m, scripts/miscellaneous/getappdata.m, scripts/miscellaneous/gunzip.m, scripts/miscellaneous/isappdata.m, scripts/miscellaneous/ls.m, scripts/miscellaneous/mex.m, scripts/miscellaneous/movefile.m, scripts/miscellaneous/orderfields.m, scripts/miscellaneous/recycle.m, scripts/miscellaneous/rmappdata.m, scripts/miscellaneous/setfield.m, scripts/miscellaneous/symvar.m, scripts/miscellaneous/tar.m, scripts/miscellaneous/tmpnam.m, scripts/miscellaneous/unpack.m, scripts/miscellaneous/ver.m, scripts/miscellaneous/what.m, scripts/miscellaneous/xor.m, scripts/miscellaneous/zip.m, scripts/optimization/fminbnd.m, scripts/optimization/sqp.m, scripts/path/private/getsavepath.m, scripts/path/savepath.m, scripts/pkg/pkg.m, scripts/pkg/private/installed_packages.m, scripts/plot/draw/plotyy.m, scripts/plot/draw/polar.m, scripts/plot/draw/private/__quiver__.m, scripts/plot/draw/private/__scatter__.m, scripts/plot/draw/private/__stem__.m, scripts/plot/draw/surface.m, scripts/plot/draw/surfnorm.m, scripts/plot/util/copyobj.m, scripts/plot/util/hgload.m, scripts/plot/util/hgsave.m, scripts/plot/util/isprop.m, scripts/plot/util/linkprop.m, scripts/plot/util/private/__go_draw_axes__.m, scripts/set/setdiff.m, scripts/set/union.m, scripts/signal/periodogram.m, scripts/sparse/eigs.m, scripts/sparse/ilu.m, scripts/sparse/qmr.m, scripts/sparse/sprand.m, scripts/sparse/sprandn.m, scripts/specfun/beta.m, scripts/specfun/ellipke.m, scripts/specfun/isprime.m, scripts/statistics/base/lscov.m, scripts/testfun/__run_test_suite__.m, scripts/testfun/test.m: Strip trailing whitespace.

--- a/scripts/general/interp1.m
+++ b/scripts/general/interp1.m
@@ -102,7 +102,7 @@
 ## near = interp1 (xp, yp, xf, "nearest");
 ## pch = interp1 (xp, yp, xf, "pchip");
 ## spl = interp1 (xp, yp, xf, "spline");
-## plot (xf,yf,"r", xf,near,"g", xf,lin,"b", xf,pch,"c", xf,spl,"m", 
+## plot (xf,yf,"r", xf,near,"g", xf,lin,"b", xf,pch,"c", xf,spl,"m",
 ##       xp,yp,"r*");
 ## legend ("original", "nearest", "linear", "pchip", "spline");
 ## @end group
@@ -197,7 +197,7 @@
 
   if (any (strcmp (method, {"previous", "*previous", "next", "*next"})))
     rightcontinuous = NaN; # needed for these methods to work
-  endif 
+  endif
 
   if (isnan (rightcontinuous))
     ## If not specified, set the continuity condition
@@ -222,7 +222,7 @@
   elseif (strcmp (method, "*next"))
     x = flipud (x);
     y = flipud (y);
-    method = "*previous";  
+    method = "*previous";
   endif
 
   starmethod = method(1) == "*";
@@ -543,7 +543,7 @@
 %!        [interp1(xp,yp,xi(:),style),interp1(xp,yp,xi(:),style)])
 ## This test is expected to fail, so commented out.
 ## "previous" and "next" options are not symmetric w.r.t to flipping xp,yp
-#%!assert (interp1 (xp,yp,xi,style),... 
+#%!assert (interp1 (xp,yp,xi,style),...
 #%!        interp1 (fliplr (xp),fliplr (yp),xi,style),100*eps)
 %!assert (ppval (interp1 (xp,yp,style,"pp"),xi),
 %!        interp1 (xp,yp,xi,style,"extrap"),10*eps)
@@ -560,7 +560,7 @@
 %!assert (isempty (interp1 (xp,yp,[],style)))
 %!assert (interp1 (xp,[yp',yp'],xi(:),style),...
 %!        [interp1(xp,yp,xi(:),style),interp1(xp,yp,xi(:),style)])
-# %!assert (interp1 (xp,yp,xi,style),... 
+# %!assert (interp1 (xp,yp,xi,style),...
 # %!        interp1 (fliplr (xp),fliplr (yp),xi,style),100*eps)
 %!assert (ppval (interp1 (xp,yp,style,"pp"),xi),
 %!        interp1 (xp,yp,xi,style,"extrap"),10*eps)
@@ -578,7 +578,7 @@
 %!assert (isempty (interp1 (xp,yp,[],style)))
 %!assert (interp1 (xp,[yp',yp'],xi(:),style),...
 %!        [interp1(xp,yp,xi(:),style),interp1(xp,yp,xi(:),style)])
-# %!assert (interp1 (xp,yp,xi,style),... 
+# %!assert (interp1 (xp,yp,xi,style),...
 # %!        interp1 (fliplr (xp),fliplr (yp),xi,style),100*eps)
 %!assert (ppval (interp1 (xp,yp,style,"pp"),xi),
 %!        interp1 (xp,yp,xi,style,"extrap"),10*eps)
@@ -595,7 +595,7 @@
 %!assert (isempty (interp1 (xp,yp,[],style)))
 %!assert (interp1 (xp,[yp',yp'],xi(:),style),...
 %!        [interp1(xp,yp,xi(:),style),interp1(xp,yp,xi(:),style)])
-# %!assert (interp1 (xp,yp,xi,style),... 
+# %!assert (interp1 (xp,yp,xi,style),...
 # %!        interp1 (fliplr (xp),fliplr (yp),xi,style),100*eps)
 %!assert (ppval (interp1 (xp,yp,style,"pp"),xi),
 %!        interp1 (xp,yp,xi,style,"extrap"),10*eps)