restore *.orig.c to each entry

Under each yyyy/dir there is a file of the form '*.orig.c'
containing the original source code, or as close as we can
get to the original source code.

2013/dlowe/dlowe.orig.c

@@ -0,0 +1,2 @@
+main(a,b)char**b;{int c=1,d=c,e=a-d;for(;e;e--)_(e)<_(c)?c=e:_(e)>_(d)?d=e:7;
+while(++e<a)printf("\xe2\x96%c",129+(**b=8*(_(e)-_(c))/(_(d)-_(c))));}