Add some missing "Available since" documentation.
Also fix formatting of `errno` in one function.
Test: treehugger
Change-Id: Ibf362bcd36c901dab2a422afe09e0f78011315aa
diff --git a/libc/include/unistd.h b/libc/include/unistd.h
index b5694b8..3efc9a2 100644
--- a/libc/include/unistd.h
+++ b/libc/include/unistd.h
@@ -317,10 +317,10 @@
* [copy_file_range(2)](https://man7.org/linux/man-pages/man2/copy_file_range.2.html) copies
* a range of data from one file descriptor to another.
*
- * Returns the number of bytes copied on success, and returns -1 and sets errno
- * on failure.
- *
* Available since API level 34.
+ *
+ * Returns the number of bytes copied on success, and returns -1 and sets
+ * `errno` on failure.
*/
ssize_t copy_file_range(int __fd_in, off64_t* __off_in, int __fd_out, off64_t* __off_out, size_t __length, unsigned int __flags) __INTRODUCED_IN(34);