Use 2-D, not 2D, in error messages. * libinterp/corefcn/cellfun.cc, libinterp/corefcn/ls-oct-ascii.cc, libinterp/octave-value/ov-bool-sparse.cc, libinterp/octave-value/ov-cx-sparse.cc, libinterp/octave-value/ov-re-sparse.cc, scripts/plot/private/__go_draw_axes__.m, scripts/polynomial/private/__splinefit__.m, scripts/sparse/svds.m, scripts/special-matrix/gallery.m: Use 2-D, not 2D, in error messages.

--- a/scripts/sparse/svds.m
+++ b/scripts/sparse/svds.m
@@ -99,7 +99,7 @@
   endif
 
   if (ndims (A) > 2)
-    error ("svds: A must be a 2D matrix");
+    error ("svds: A must be a 2-D matrix");
   endif
 
   if (nargin < 4)