In libsvn_repos, simplify hash iteration code a little by using key and value accessor functions rather than apr_hash_this(), as we already do in many other places.
Though I lament the length of those svn__apr_hash_index_* identifiers (which I created), at least it's a step closer to readable. We can shorten them later to apr_hash_this_* by adding configury, now that APR 1.5 has those.
* subversion/libsvn_repos/delta.c (delta_dirs): As above.
* subversion/libsvn_repos/fs-wrap.c (svn_repos_fs_commit_txn): As above.
* subversion/libsvn_repos/hooks.c (lock_token_content): As above.
* subversion/libsvn_repos/load-fs-vtable.c (prefix_mergeinfo_paths, renumber_mergeinfo_revs, remove_node_props): As above.