Normalize and fix some mistakes in NS-related commentary

Normalize and fix some mistakes in NS-related commentary

* lisp/term/ns-win.el (ns-insert-working-text): Normalize
commentary.
(x-file-dialog): Fix indentation.

* src/nsfns.m (ns_get_window, interpret_services_menu)
(x_set_background_color, x_set_icon_name, x_set_tool_bar_lines)
(x_set_icon_type, x_set_mouse_color, Fx_create_frame)
(ns_window_is_ancestor, Fns_popup_font_panel)
(Fx_display_visual_class, Fns_font_name, Fns_do_applescript)
(ns_screen_name, compute_tip_xy, Fns_mouse_absolute_pixel_position)
(handlePanelKeys): Normalize commentary (also in top-level
declarations) and remove two outdated comments (one in
Fx_create_frame, the other in compute_tip_xy).

* src/nsterm.h (NSApplication, NSWindow, ns_bitmap_record):
* src/nsselect.m:
* src/nsmenu.m (ns_update_menubar, addItemWithWidgetValue:)
(runMenuAt:forFrame:keymaps:, ns_menu_show, free_frame_tool_bar)
(update_frame_tool_bar, init)
(initWithContentRect:styleMask:backing:defer:)
(initFromContents:isQuestion:, timeout_handler:)
(Fmenu_or_popup_active_p):
* src/nsimage.m (initFromXBM, initFromXBMWithDepth):
* src/nsgui.h:
* src/nsfont.m (ns_spec_to_descriptor, ns_descriptor_to_entity)
(ns_charset_covers, ns_get_req_script, ns_findfonts)
(nsfont_list_family, nsfont_open, nsfont_encode_char)
(nsfont_draw, ns_uni_to_glyphs, ns_glyph_metrics)
(syms_of_nsfont): Normalize commentary (also in top-level
declarations).

* src/nsterm.m (ns_init_locale, ns_retain_object)
(ns_screen_margins_ignoring_hidden_dock, ns_unfocus, NSImageView)
(x_make_frame_visible, x_iconify_frame, x_destroy_window)
(x_set_undecorated, x_set_no_focus_on_map, x_set_z_group)
(ns_index_color, ns_get_color, ns_lisp_to_color)
(note_mouse_movement, scrollbar, ns_scroll_run)
(ns_draw_fringe_bitmap, ns_draw_window_cursor)
(ns_draw_text_decoration, ns_draw_relief)
(ns_dumpglyphs_box_or_relief, ns_dumpglyphs_image)
(ns_dumpglyphs_stretch, ns_draw_glyph_string, ns_send_appdefined)
(ns_check_menu_open, ns_read_socket, ns_select, ns_run_loop_break)
(ns_set_vertical_scroll_bar, ns_set_horizontal_scroll_bar)
(ns_string_to_lispmod, ns_default, ns_initialize_display_info)
(ns_delete_display, ns_term_init, sendEvent:)
(applicationDidFinishLaunching:, applicationDidBecomeActive:)
(fd_handler:, setWindowClosing:, keyDown:, insertText:)
(mouseDown:, mouseMoved:, updateFrameSize:)
(windowWillResize:toSize:, windowDidResize:, windowDidResignKey:)
(initFrameFromEmacs:, toggleFullScreen:, toolbarClicked:)
(writeSelectionToPasteboard:types:, setMiniwindowImage:)
(scrollerWidth, initFrame:window:, setFrame:, repeatScroll:)
(ns_xlfd_to_fontname, syms_of_nsterm): Normalize commentary (also in
top-level declarations), and in ns_get_color, replace a Gmane link
with one from lists.gnu.org, which does not require JS to view the
message.