I think we'd also like to get output that is similar to what happened with ARP-1.4.5 (i.e. before the hash table randomness change in APR-1.4.6). I believe that was equivalent to lexical sort. The entries are hash keys, and the hash function in APR didn't result in the kind of ordering that svn_sort_compare_paths would choose.
Interesting, I hadn't thought of backward-compatibility as a real option; I assumed that the hash table iterator would emit the entries sorted by their hash values.
For what it's worth, here's what the old version of svnadmin I have kicking around does:
/usr/bin/svnadmin --version
svnadmin, version 1.6.6 (r40053) ...
ls -l /usr/lib/libapr-1.so.0
lrwxrwxrwx 1 root root 17 May 25 2011 /usr/lib/libapr-1.so.0 -> libapr-1.so.0.3.8 dstn@apps3:~/svn-backup-astrometry
ls -l /usr/lib/libaprutil-1.so.0
lrwxrwxrwx 1 root root 21 Nov 26 2010 /usr/lib/libaprutil-1.so.0 -> libaprutil-1.so.0.3.9 Node-path: trunk/documents/papers/archetypes/paper_plots/1qq.ps Node-path: trunk/documents/papers/archetypes/paper_plots/2qq.ps Node-path: trunk/documents/papers/archetypes/paper_plots/3qq.ps Node-path: trunk/documents/papers/archetypes/paper_plots/4qq.ps Node-path: trunk/documents/papers/archetypes/paper_plots/36gg.ps Node-path: trunk/documents/papers/archetypes/paper_plots/12ggg.ps Node-path: trunk/documents/papers/archetypes/paper_plots/66gg.ps Node-path: trunk/documents/papers/archetypes/paper_plots/18lg.ps Node-path: trunk/documents/papers/archetypes/paper_plots/55lg.ps Node-path: trunk/documents/papers/archetypes/paper_plots/1gg.ps Node-path: trunk/documents/papers/archetypes/paper_plots/2gg.ps Node-path: trunk/documents/papers/archetypes/paper_plots/3gg.ps Node-path: trunk/documents/papers/archetypes/paper_plots/103lg.ps Node-path: trunk/documents/papers/archetypes/paper_plots/59lgg.ps Node-path: trunk/documents/papers/archetypes/paper_plots/68lgg.ps Node-path: trunk/documents/papers/archetypes/paper_plots/36ggSLACS.ps Node-path: trunk/documents/papers/archetypes/paper_plots/66ggSLACS.ps Which sure isn't lexical :) --dstn
