Improve ChatML template

instruction-templates/ChatML.yaml

@@ -5,15 +5,12 @@ instruction_template: |-
           {%- set ns.found = true -%}
       {%- endif -%}
   {%- endfor -%}
-  {%- if not ns.found -%}
-      {{- '<|im_start|>system\n' + '' + '<|im_end|>\n' -}}
-  {%- endif %}
   {%- for message in messages %}
       {%- if message['role'] == 'system' -%}
-          {{- '<|im_start|>system\n' + message['content'] + '<|im_end|>\n' -}}
+          {{- '<|im_start|>system\n' + message['content'].rstrip() + '<|im_end|>\n' -}}
       {%- else -%}
           {%- if message['role'] == 'user' -%}
-              {{-'<|im_start|>user\n' + message['content'] + '<|im_end|>\n'-}}
+              {{-'<|im_start|>user\n' + message['content'].rstrip() + '<|im_end|>\n'-}}
           {%- else -%}
               {{-'<|im_start|>assistant\n' + message['content'] + '<|im_end|>\n' -}}
           {%- endif -%}