test: internal: ring_buffer: update calls to flb_ring_buffer_peek to add missing skip_count argument.

Signed-off-by: Phillip Adair Stewart Whelan <phillip.whelan@chronosphere.io>

Author: pwhelan

tests/internal/ring_buffer.c

@@ -193,15 +193,15 @@ void test_peek_seek()
     c = NULL;
 
     /* consume one entry */
-    ret = flb_ring_buffer_peek(rb, (void *) &c, sizeof(c));
+    ret = flb_ring_buffer_peek(rb, 0, (void *) &c, sizeof(c));
     TEST_CHECK(ret == 0);
 
     /* the consumed entry must be equal to the first one */
     c = &checks[0];
     TEST_CHECK(strcmp(c->buf_a, "a1") == 0 && strcmp(c->buf_b, "a2") ==0);
 
     /* consume one entry */
-    ret = flb_ring_buffer_peek(rb, (void *) &c, sizeof(c));
+    ret = flb_ring_buffer_peek(rb, 0, (void *) &c, sizeof(c));
     TEST_CHECK(ret == 0);
 
     /* the consumed entry must be equal to the first one */