examples/*hiperfifo.c: fix calloc arguments to match function proto

Closes #7678

docs/examples/ephiperfifo.c

@@ -292,7 +292,7 @@ static void setsock(SockInfo *f, curl_socket_t s, CURL *e, int act,
 /* Initialize a new SockInfo structure */
 static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g)
 {
-  SockInfo *fdp = (SockInfo*)calloc(sizeof(SockInfo), 1);
+  SockInfo *fdp = (SockInfo*)calloc(1, sizeof(SockInfo));
 
   fdp->global = g;
   setsock(fdp, s, easy, action, g);

docs/examples/evhiperfifo.c

@@ -266,7 +266,7 @@ static void setsock(SockInfo *f, curl_socket_t s, CURL *e, int act,
 /* Initialize a new SockInfo structure */
 static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g)
 {
-  SockInfo *fdp = calloc(sizeof(SockInfo), 1);
+  SockInfo *fdp = calloc(1, sizeof(SockInfo));
 
   fdp->global = g;
   setsock(fdp, s, easy, action, g);

docs/examples/hiperfifo.c

@@ -266,7 +266,7 @@ static void setsock(SockInfo *f, curl_socket_t s, CURL *e, int act,
 /* Initialize a new SockInfo structure */
 static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g)
 {
-  SockInfo *fdp = calloc(sizeof(SockInfo), 1);
+  SockInfo *fdp = calloc(1, sizeof(SockInfo));
 
   fdp->global = g;
   setsock(fdp, s, easy, action, g);