Replace {} with continue

Change-Id: I2e939e898cc30c2999b47f2789191e08272b1cc0

examples/simple_encoder.c

diff --git a/examples/simple_encoder.c b/examples/simple_encoder.c
index 73a4fde..418757d 100644
--- a/examples/simple_encoder.c
+++ b/examples/simple_encoder.c
@@ -232,8 +232,7 @@
   }
 
   // Flush encoder.
-  while (encode_frame(&codec, NULL, -1, 0, writer)) {
-  }
+  while (encode_frame(&codec, NULL, -1, 0, writer)) continue;
 
   printf("\n");
   fclose(infile);