Fix build error in tee sink

Bug: 30203029
Change-Id: I4b595c81f570fd12f7a1c7deb6db7e3139276481
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 149b492..79f4a66 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -3054,7 +3054,7 @@
             }
         } else {
             if (fd >= 0) {
-                dprintf(fd, "unable to rotate tees in %.*s: %s\n", teePathLen, teePath,
+                dprintf(fd, "unable to rotate tees in %.*s: %s\n", (int) teePathLen, teePath,
                         strerror(errno));
             }
         }