CLEANUP: Fix typos in the sample subsystem
Fix some typos in the code comment of the sample subsystem.
diff --git a/include/proto/sample.h b/include/proto/sample.h
index 4fb5bab..606dcb6 100644
--- a/include/proto/sample.h
+++ b/include/proto/sample.h
@@ -51,7 +51,7 @@
/*
* This function just apply a cast on sample. It returns 0 if the cast is not
- * avalaible or if the cast fails, otherwise returns 1. It does not modify the
+ * available or if the cast fails, otherwise returns 1. It does not modify the
* input sample on failure.
*/
static inline