On the fsfs-format7 branch:  Strongly hint to the compiler that
readbuf_getchar should be inlined.

* subversion/libsvn_ra_svn/marshal.c
  (readbuf_getchar): gcc doesn't like to inline it but I insist ...

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/fsfs-format7@1490673 13f79535-47bb-0310-9956-ffa450edef68