Update log.md (#4111)

## What are you changing in this pull request and why?
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Source github URL currently brings me to the wrong place. Presumably
these line numbers will change anytime someone commits to this file, so
might need a better solution in the future to reference this code.
<img width="1004" alt="Screenshot 2023-09-22 at 10 28 16 AM"
src="https://github.com/dbt-labs/docs.getdbt.com/assets/30663534/af3650ce-9c99-475c-8049-60f65159859f">

Change to L549-L566

## Checklist
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so my content adheres to these guidelines.
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Adding new pages (delete if not applicable):
- [ ] Add page to `website/sidebars.js`
- [ ] Provide a unique filename for the new page

Removing or renaming existing pages (delete if not applicable):
- [ ] Remove page from `website/sidebars.js`
- [ ] Add an entry `website/static/_redirects`
- [ ] [Ran link
testing](https://github.com/dbt-labs/docs.getdbt.com#running-the-cypress-tests-locally)
to update the links that point to the deleted page

website/docs/reference/dbt-jinja-functions/log.md

@@ -12,7 +12,34 @@ __Args__:
 
 Logs a line to either the log file or stdout.
 
-([Source on GitHub](https://github.com/dbt-labs/dbt-core/blob/HEAD/core/dbt/context/base.py#L432))
+<details>
+	<summary>Code source</summary>
+	Refer to <a href="https://github.com/dbt-labs/dbt-core/blob/HEAD/core/dbt/context/base.py#L549-L566">GitHub</a> or the following code as a source: <br /><br />
+
+```python
+    def log(msg: str, info: bool = False) -> str: 
+        """Logs a line to either the log file or stdout.
+
+        :param msg: The message to log
+        :param info: If `False`, write to the log file. If `True`, write to
+            both the log file and stdout.
+
+        > macros/my_log_macro.sql
+
+            {% macro some_macro(arg1, arg2) %}
+              {{ log("Running some_macro: " ~ arg1 ~ ", " ~ arg2) }}
+            {% endmacro %}"
+        """
+        if info:
+            fire_event(JinjaLogInfo(msg=msg, node_info=get_node_info()))
+        else:
+            fire_event(JinjaLogDebug(msg=msg, node_info=get_node_info()))
+        return ""
+```
+
+
+
+</details>
 
 ```sql