Trim '.' characters from paths on Windows

This prevents Code from opening/attempting to open invalid file names.

Fixes #1579

src/vs/workbench/electron-main/env.ts

@@ -316,6 +316,11 @@ function massagePath(path: string): string {
 	// Trim whitespaces
 	path = strings.trim(strings.trim(path, ' '), '\t');
 
+	// Trim '.' chars on Windows to prevent invalid file names
+	if (platform.isWindows) {
+		path = strings.rtrim(normalizePath(path), '.');
+	}
+
 	return path;
 }