Avoid signed overflow during mult-s16-test which intermittently
failed.

Patch by Mark H Weaver <mhw@netris.org>.

--- pulseaudio-5.0/src/tests/mult-s16-test.c.orig	2014-01-23 13:57:55.000000000 -0500
+++ pulseaudio-5.0/src/tests/mult-s16-test.c	2014-10-24 03:13:46.464661815 -0400
@@ -55,7 +55,7 @@
 START_TEST (mult_s16_test) {
     int16_t samples[SAMPLES];
     int32_t volumes[SAMPLES];
-    int32_t sum1 = 0, sum2 = 0;
+    uint32_t sum1 = 0, sum2 = 0;
     int i;
 
     pa_random(samples, sizeof(samples));
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<tr><td><span title='2019-11-20 00:16:51 +0100'>2019-11-20</span></td><td><a href='/guix/commit/gnu/packages/printers.scm?id=711e8bf75fdacc8218b3957bbd7cb367da6392b5'>gnu: brlaser: Update to 6.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/printers.scm (brlaser): Update to 6.

Signed-off-by: Marius Bakke &lt;mbakke@fastmail.com&gt;
</span></span></td><td>nixo</td></tr>