Update chat_template.jinja

chat_template.jinja

@@ -12,4 +12,4 @@ You are Olmo, a helpful AI assistant built by Ai2. Your date cutoff is December
 ' + message['content'] + '<|im_end|>
 ' -}}{%- elif message['role'] == 'tool' -%}{{- '<|im_start|>environment
 ' + message['content'] + '<|im_end|>
-' -}}{%- endif -%}{%- if loop.last and add_generation_prompt -%}{{- '<|im_start|>assistant\n' -}}{%- endif -%}{%- endfor -%}
+' -}}{%- endif -%}{%- if loop.last and add_generation_prompt -%}{{- '<|im_start|>assistant\n' -}}{%- endif -%}{%- endfor -%}