CLEANUP: fix a typo in a comment for the contrib/halog subsystem
Typo in comment, not visible by end-users.
diff --git a/contrib/halog/halog.c b/contrib/halog/halog.c
index a724817..91e2af3 100644
--- a/contrib/halog/halog.c
+++ b/contrib/halog/halog.c
@@ -876,7 +876,7 @@
#if defined(POSIX_FADV_SEQUENTIAL)
/* around 20% performance improvement is observed on Linux with this
- * on cold-cache. Surprizingly, WILLNEED is less performant. Don't
+ * on cold-cache. Surprisingly, WILLNEED is less performant. Don't
* use NOREUSE as it flushes the cache and prevents easy data
* manipulation on logs!
*/