Minor typo fix

src/defrag.c

@@ -245,7 +245,7 @@ double *zslDefrag(zskiplist *zsl, double score, sds oldele, sds newele) {
     return NULL;
 }
 
-/* Defrag helpler for sorted set.
+/* Defrag helper for sorted set.
  * Defrag a single dict entry key name, and corresponding skiplist struct */
 long activeDefragZsetEntry(zset *zs, dictEntry *de) {
     sds newsds;

src/latency.c

@@ -154,7 +154,7 @@ int latencyResetEvent(char *event_to_reset) {
 
 /* Analyze the samples available for a given event and return a structure
  * populate with different metrics, average, MAD, min, max, and so forth.
- * Check latency.h definition of struct latenctStat for more info.
+ * Check latency.h definition of struct latencyStats for more info.
  * If the specified event has no elements the structure is populate with
  * zero values. */
 void analyzeLatencyForEvent(char *event, struct latencyStats *ls) {

src/rax.h

@@ -58,7 +58,7 @@
  * successive nodes having a single child are "compressed" into the node
  * itself as a string of characters, each representing a next-level child,
  * and only the link to the node representing the last character node is
- * provided inside the representation. So the above representation is turend
+ * provided inside the representation. So the above representation is turned
  * into:
  *
  *                  ["foo"] ""