vsprintf: Fix a dangling documentation reference
A reference to printk-formats.txt didn't get updated when the file moved;
fix that.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 6ec0844..2b18135 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -2195,7 +2195,7 @@
* - ``%n`` is unsupported
* - ``%p*`` is handled by pointer()
*
- * See pointer() or Documentation/printk-formats.txt for more
+ * See pointer() or Documentation/core-api/printk-formats.rst for more
* extensive description.
*
* **Please update the documentation in both places when making changes**