maint: Strip trailing whitespace from source files. Modified files: NEWS.8.md, file-editor-tab.cc, call-stack.cc, compile.cc, perms.cc, stack-frame.cc, ov-base.cc, ov-fcn-handle.cc, ov-fcn-handle.h, ov-fcn.cc, ov-oncleanup.h, ov-range.cc, ov-range.h, ov-ref.cc, ov-ref.h, ov-scalar.h, ov-struct.cc, ov-vm.h, pt-bytecode-vm-internal.h, pt-bytecode-vm.cc, pt-bytecode-vm.h, pt-bytecode-walk.cc, pt-eval.cc, isuniform.m, inputParser.m, xlim.m, ylim.m, zlim.m, movfun.m, std.m, var.m, isstrprop.m, bench.m, bench.py, bytecode.tst, bytecode_anon_handles.m, bytecode_cell.m, bytecode_dountil.m, bytecode_end.m, bytecode_errors.m, bytecode_eval_1.m, bytecode_for.m, bytecode_global_1.m, bytecode_if.m, bytecode_leaks.m, bytecode_matrix.m, bytecode_multi_assign.m, bytecode_persistant.m, bytecode_range.m, bytecode_trycatch.m, bytecode_unwind.m, bytecode_while.m, bytecode_disp.m, bytecode_disp.tst, parser.tst.

--- a/etc/NEWS.8.md	Mon Jun 19 20:07:05 2023 -0400
+++ b/etc/NEWS.8.md	Mon Jun 19 23:21:41 2023 -0400
@@ -94,7 +94,7 @@
 - Octave is now compatible with PCRE2 (UTF-8).  PCRE2 is preferred over PCRE
   if both are installed.  Configure with `--without-pcre2` if you prefer Octave
   to use PCRE in this case.
-  
+
 - `mean` now internally processes data as type double to reduce likelihood of
 hitting overflow or precision limits with other types (bug #63848).