Another round of tweaks for spandsp. There should be no functional changes,

although quite a few things have changed in the test suite

libs/spandsp/tests/tone_generate_tests.c

@@ -239,7 +239,7 @@ int main(int argc, char *argv[])
         outframes = sf_writef_short(outhandle, amp, len);
     }
     
-    if (sf_close(outhandle) != 0)
+    if (sf_close_telephony(outhandle))
     {
         fprintf(stderr, "    Cannot close audio file '%s'\n", OUTPUT_FILE_NAME);
         exit (2);