Merge pull request microsoft#236736 from microsoft/tyriar/236670

Explain exitCode undefined in more detail

Author: Tyriar

src/vscode-dts/vscode.d.ts

@@ -7724,10 +7724,17 @@ declare module 'vscode' {
 		/**
 		 * The exit code reported by the shell.
 		 *
-		 * Note that `undefined` means the shell either did not report an exit  code (ie. the shell
-		 * integration script is misbehaving) or the shell reported a command started before the command
-		 * finished (eg. a sub-shell was opened). Generally this should not happen, depending on the use
-		 * case, it may be best to treat this as a failure.
+		 * When this is `undefined` it can mean several things:
+		 *
+		 * - The shell either did not report an exit  code (ie. the shell integration script is
+		 *   misbehaving)
+		 * - The shell reported a command started before the command finished (eg. a sub-shell was
+		 *   opened).
+		 * - The user canceled the command via ctrl+c.
+		 * - The user pressed enter when there was no input.
+		 *
+		 * Generally this should not happen. Depending on the use case, it may be best to treat this
+		 * as a failure.
 		 *
 		 * @example
 		 * const execution = shellIntegration.executeCommand({