Fix instructions for launching studio on Linux

Change-Id: Ia9aa71f2349b4d6328f9b7757f158e020689c6ee
diff --git a/build/scripts/utils.gant b/build/scripts/utils.gant
index 3a098be..ddd9fc8 100644
--- a/build/scripts/utils.gant
+++ b/build/scripts/utils.gant
@@ -506,6 +506,7 @@
                    ["product_full": fullName,
                     "product": p("component.names.product").toLowerCase(),
                     "system_selector": args.system_selector,
+                    "script_name" : args.script_name,
                     "settings_dir": settings_dir], "@@")
   ant.fixcrlf(file: "$target/bin/Install-Linux-tar.txt", eol: "unix")
 })