same solution on all OS (for #14622)

src/vs/code/electron-main/menus.ts

@@ -1006,15 +1006,11 @@ export class VSCodeMenu {
 			// the keybinding is not native so we cannot show it as part of the accelerator of
 			// the menu item. we fallback to a different strategy so that we always display it
 			else {
-				if (isWindows) {
-					options.sublabel = binding.label; // leverage sublabel support on Windows (only)
+				const bindingIndex = options.label.indexOf('〔');
+				if (bindingIndex >= 0) {
+					options.label = `${options.label.substr(0, bindingIndex)} 〔${binding.label}〕`;
 				} else {
-					const bindingIndex = options.label.indexOf('〔');
-					if (bindingIndex >= 0) {
-						options.label = `${options.label.substr(0, bindingIndex)} 〔${binding.label}〕`;
-					} else {
-						options.label = `${options.label} 〔${binding.label}〕`;
-					}
+					options.label = `${options.label} 〔${binding.label}〕`;
 				}
 			}
 		}
@@ -1022,9 +1018,6 @@ export class VSCodeMenu {
 		// Unset bindings if there is none
 		else {
 			options.accelerator = void 0;
-			if (isWindows) {
-				options.sublabel = void 0;
-			}
 		}
 
 		return options;

src/vs/workbench/services/contextview/electron-browser/contextmenuService.ts

@@ -7,7 +7,6 @@
 
 import { TPromise } from 'vs/base/common/winjs.base';
 import severity from 'vs/base/common/severity';
-import { isWindows } from 'vs/base/common/platform';
 import { IAction } from 'vs/base/common/actions';
 import { Separator } from 'vs/base/browser/ui/actionbar/actionbar';
 import dom = require('vs/base/browser/dom');
@@ -95,11 +94,7 @@ export class ContextMenuService implements IContextMenuService {
 					} else {
 						const label = this.keybindingService.getLabelFor(keybinding);
 						if (label) {
-							if (isWindows) {
-								options.sublabel = label; // leverage sublabel support on Windows (only)
-							} else {
-								options.label = `${options.label} 〔${label}〕`;
-							}
+							options.label = `${options.label} 〔${label}〕`;
 						}
 					}
 				}