audio/amused: fix sndio detection on gcc arches; no package changes.

The configure script failed to pick up sndio because the test for it was
lacking a final `return 0' and gcc complained that "control reaches the
end of non-void function".

audio/amused/patches/patch-tests_c

@@ -0,0 +1,21 @@
+fix sndio detection: gcc complains that "control reaches end of non-void
+function".
+
+Index: tests.c
+--- tests.c.orig
++++ tests.c
+@@ -526,6 +526,7 @@ main(void)
+ 	hdl = sio_open(SIO_DEVANY, SIO_PLAY, 1);
+ 	sio_flush(hdl);
+ 	sio_close(hdl);
++	return 0;
+ }
+ #endif /* TEST_SIO_FLUSH */
+ #if TEST_SCAN_SCALED
+@@ -950,5 +951,6 @@ main(void)
+ 	struct sio_hdl *hdl;
+ 	hdl = sio_open(SIO_DEVANY, SIO_PLAY, 1);
+ 	sio_close(hdl);
++	return 0;
+ }
+ #endif /* TEST_LIB_SNDIO */