Fix warning logic of missing eos/bos tokens

Author: ochafik

common/common.cpp

@@ -1855,8 +1855,8 @@ common_chat_templates common_chat_templates_from_model(const struct llama_model
     }
     const auto get_token = [&](llama_token token, const char * name, const char * jinja_variable_name) {
         if (token == LLAMA_TOKEN_NULL) {
-            if (default_template_src.find(jinja_variable_name) != std::string::npos
-                || template_tool_use_src.find(jinja_variable_name) != std::string::npos) {
+            if (default_template_src.find(jinja_variable_name) == std::string::npos
+                && template_tool_use_src.find(jinja_variable_name) == std::string::npos) {
                 LOG_WRN("%s: warning: vocab does not have a %s token, jinja template won't work as intended.\n", __func__, name);
             }
             return std::string();