On the fsfs-format7 branch: fix a number of compiler warnings

* subversion/libsvn_fs_fs/index.c
  (): use the right #include markers; fix a section comment
  (svn_fs_fs__l2p_index_create): move declarations to the beginning
                                 of the block; fix duplicate identifier
  (get_l2p_page): remove unused variable

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/fsfs-format7@1471014 13f79535-47bb-0310-9956-ffa450edef68
On the fsfs-format7 branch: fix detection of string (sub-)table overflow.

* subversion/libsvn_fs_fs/string_table.c
  (svn_fs_fs__string_table_builder_add): fix copy'n'pasto


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/fsfs-format7@1471073 13f79535-47bb-0310-9956-ffa450edef68
On the fsfs-format7 branch: 

* subversion/libsvn_fs_fs/changes.h
  (svn_sort__bsearch_lower_bound): expand docstring


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/fsfs-format7@1471208 13f79535-47bb-0310-9956-ffa450edef68