Fix 1984/anonymous for macOS (clang?)

This one was also fun. By chance I noticed the '{' next to the read()
function. Easy enough to miss when very tired. Anyway I had to prototype
that function as 'int read(int, void *, int)' and then in that function,
in the call to write(2), cast 'i' (which is the void *) to int. This
fixes the problem and now it works with macOS and linux.

Removed this entry from bugs.md.

1984/anonymous/anonymous.c

@@ -1,2 +1,2 @@
-int i;main(){for(;i["]<i;++i){--i;}"];read('-'-'-',i+++"hell\
-o, world!\n",'/'/'/'));}read(j,i,p){write(j/p+p,i---j,i/i);}
+int read(int,void*,int);i;main(){for(;i["]<i;++i){--i;}"];read('-'-'-',i+++"hell\
+o, world!\n",'/'/'/'));}read(int j,void *i,int p){write(j/p+p,i---j,(int)i/(int)i);}