- getopt.c:parseargs(): use xstrdup() instead of malloc/strcpy combo; don't modify memory pointed
  by the argument vector. Fixes provided by Adam.


git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid/branches/8.2.x@4469 82007160-df01-0410-b94d-b575c5fd34c7