Move 1988-2004 entries into subdirs

We we move 1988-2004 entries from all of a year's winning entries
in a single directory to each winner being in their own sub-directory
under the given year directory.

1991/brnstnd/sorta.irot13

@@ -0,0 +1,9 @@
+"[] [.tr] "
+["]".[a-m][n-z][A-M][N-Z]"[" ]TTT ["]".[n-z][a-m][N-Z][A-M]"[" ]TTT
+"[tr] !q"T:xld
+["rot13: fatal: need exactly one argument"`q]:gld
+["rot13: fatal: cannot open "1ST`q]:hld
+a2_+=g
+1A 0 [ that 0 is for RDONLY ]ld
+     0 'o D0 1s>=hld
+0Ou1=x  [ in a more complex spawner, this would be done under a fork ]ld