- m_xline.c: reorder functions, removed unused header includes, constifications


git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid/trunk@2974 82007160-df01-0410-b94d-b575c5fd34c7
- m_server.c:mr_server(): don't falsely exit a server with the reason
  being "SID already exists" if it's just hash_find_server() that
  returned non-NULL.


git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid/trunk@2976 82007160-df01-0410-b94d-b575c5fd34c7