Users: Reuse an existing string in the confirmation for unsaved changes in user profile.

Follow-up to [58137].

Fixes #40493.
Built from https://develop.svn.wordpress.org/trunk@58145


git-svn-id: http://core.svn.wordpress.org/trunk@57610 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/user-profile.js

@@ -491,7 +491,7 @@
 			return __( 'Your new password has not been saved.' );
 		}
 		if ( originalFormContent !== $form.serialize() && ! isSubmitting ) {
-			return __( 'Changes that you made may not be saved.' );
+			return __( 'The changes you made will be lost if you navigate away from this page.' );
 		}
 	});