Followup to r1902335/issue #4901, more missing dependencies: install-serf-lib

* build.conf:
  (libsvn_ra_serf): add install dependency on $(SVN_FS_LIB_INSTALL_DEPS)


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1902364 13f79535-47bb-0310-9956-ffa450edef68
1 file changed