2013-07-26: rename get1 to multithreaded-magic.

rename get1 to multithreaded-magic.

diff --git a/get1.w b/multithreaded-magic.w
rename from get1.w
rename to multithreaded-magic.w
--- a/get1.w
+++ b/multithreaded-magic.w
@@ -14,6 +14,7 @@ use-modules
   ice-9 threads
 
 define : magic-threaded mutex futures integer
+  ; this can cause unordered output. It’s fun anyway :)
   set! futures : append futures : list : future : with-mutex mutex : format #t "~10r\n" integer
   if : not : = integer 1
     if : even? integer