Keep the harness --language usage to one line

bin/omarchy-iso-test

@@ -17,8 +17,7 @@
 #                      or Chinese (Simplified, Pinyin)/(Traditional, Zhuyin).
 #                      OMARCHY_PATH must be the source tree used to build the ISO.
 #   --encrypt          Drive the encrypted install flow (default: unencrypted)
-#   --language LANG    Pick en (default) or zh on the first screen; zh keeps the
-#                      preselected Chinese (Simplified, Pinyin) keyboard
+#   --language LANG    Pick en (default) or zh; zh keeps the preselected Pinyin keyboard
 #   --provision              Drive the deferred-provisioning install flow: no user during install, the
 #                      first boot runs omarchy-provision-owner and creates it there
 #   --reuse-base       Skip the install phase if a base image already exists