pcm_prng: renamed prng() to pcm_prng()

src/pcm_dither.c

@@ -43,7 +43,7 @@ pcm_dither_sample_24_to_16(int32_t sample, struct pcm_dither_24 *dither)
 	/* round */
 	output = sample + round;
 
-	rnd = prng(dither->random);
+	rnd = pcm_prng(dither->random);
 	output += (rnd & mask) - (dither->random & mask);
 
 	dither->random = rnd;

src/pcm_prng.h

@@ -23,7 +23,8 @@
  * A very simple linear congruential PRNG.  It's good enough for PCM
  * dithering.
  */
-static unsigned long prng(unsigned long state)
+static unsigned long
+pcm_prng(unsigned long state)
 {
 	return (state * 0x0019660dL + 0x3c6ef35fL) & 0xffffffffL;
 }

src/pcm_volume.h

@@ -46,7 +46,7 @@ pcm_dither(void)
 	static unsigned long state;
 	uint32_t r;
 
-	r = state = prng(state);
+	r = state = pcm_prng(state);
 
 	return (r & 511) - ((r >> 9) & 511);
 }