Update Nyquist to v3.09.

lib-src/libnyquist/nyquist/tran/abs.alg

@@ -1,9 +1,12 @@
 (ABS-ALG
   (NAME "abs")
   (ARGUMENTS ("sound_type" "input"))
-  (ALWAYS-SCALE input)
+  (linear input)
   (START (MIN input))
-  (INNER-LOOP "{ sample_type s = input; sample_type o = s; if (o < 0.0) o = -o; output = o; }")
+  (INNER-LOOP "{ sample_type s = input; 
+              sample_type o = s; 
+              if (o < 0.0) o = -o; 
+              output = o; }")
   (TERMINATE (MIN input))
   (LOGICAL-STOP (MIN input))
 )