Miscellaneous changes split from https://codereview.webrtc.org/1230503003 .

webrtc/modules/audio_coding/codecs/isac/main/test/ReleaseTest-API/ReleaseTest-API.cc

Index: webrtc/modules/audio_coding/codecs/isac/main/test/ReleaseTest-API/ReleaseTest-API.cc
diff --git a/webrtc/modules/audio_coding/codecs/isac/main/test/ReleaseTest-API/ReleaseTest-API.cc b/webrtc/modules/audio_coding/codecs/isac/main/test/ReleaseTest-API/ReleaseTest-API.cc
index 4eeeed078ff6d1fcf28968be47a2f014896addcd..8584c76990ae6df6fc164093de07a8d82fa79c2e 100644
--- a/webrtc/modules/audio_coding/codecs/isac/main/test/ReleaseTest-API/ReleaseTest-API.cc
+++ b/webrtc/modules/audio_coding/codecs/isac/main/test/ReleaseTest-API/ReleaseTest-API.cc
@@ -662,8 +662,9 @@ int main(int argc, char* argv[]) {
       if (stream_len < 0) {
         /* exit if returned with error */
         errtype = WebRtcIsac_GetErrorCode(ISAC_main_inst);
-        printf("\n\nError in encoder: %d.\n\n", errtype);
+        fprintf(stderr, "Error in encoder: %d.\n", errtype);
         cout << flush;
+        exit(0);

[Peter Kasting, 2015/07/10 18:48:46]

This matches the comment better and will also be necessary in the future when
the non-error case wants to store |stream_len| into a size_t (and therefore it
must not be negative).

       }
       cur_framesmpls += samplesIn10Ms;
       /* exit encoder loop if the encoder returned a bitstream */