maint: Clean up m-files before Octave 8.1 release. * external.txi, oop.txi, Table.h, documentation.cc, gui-preferences-ed.h, lo-specfun.cc, range.tst : Eliminate triple newlines. * Map.m, MemoizedFunction.m, delaunayn.m, inputParser.m, __publish_latex_output__.m, publish.m, unpack.m, fminbnd.m, __add_default_menu__.m, gammainc.m, gallery.m, hadamard.m, weboptions.m: Add newline after keyword "function" or before keyword "endfunction" for readability. * getaudiodata.m, pkg.m : Add semicolon to end of line for error() statement. * movegui.m: Combine mutliple calls to set() into one for performance. * __unimplemented__.m (missing_functions): Remove missing functions that have been implemented. * __vectorize__.m, check_default_input.m, betaincinv.m, gammaincinv.m: Remove semicolon at end of line with "function" declaration. * weboptions.m: Remove semicolon at end of line with "if" keyword. * integrate_adaptive.m, factor.m: Use keyword "endif" rather than bare "end".

--- a/scripts/plot/util/private/__add_default_menu__.m	Fri Nov 25 16:32:51 2022 +0100
+++ b/scripts/plot/util/private/__add_default_menu__.m	Fri Nov 25 21:23:54 2022 -0800
@@ -273,6 +273,7 @@
 endfunction
 
 function init_mouse_tools (hf)
+
   set (hf, "__pan_mode__", struct ("Enable", "off",
                                    "Motion", "both",
                                    "FigureHandle", hf),
@@ -283,6 +284,7 @@
                                     "Motion", "both",
                                     "Direction", "in",
                                     "FigureHandle", hf));
+
 endfunction
 
 function guimode_cb (h, ~)