template_utils.rs: Add error message when a template can't be found

src/template_utils.rs

@@ -1,3 +1,4 @@
+use log::error;
 use serde::Serialize;
 
 use crate::errors::UserError;
@@ -12,6 +13,7 @@ pub fn render_template(
             .render(name, args)
             .map_err(|_| UserError::InternalError)?)
     } else {
+        error!("template not found: {}", name);
         Err(UserError::NotFound)?
     }
 }