Library /sys$common/syshlp/patchhelp.hlb ALIGN, Parameters  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 symbol-name
      Specifies a 1- to 31-character symbol.  It  must  start  with  an
      alphabetic  character,  and  consist  of alphanumeric characters,
      dollar signs ($), underscores (_), and/or periods (.).

      If you specify a  symbol  name  for  an  address  that  has  been
      previously  assigned  a symbol name, the newest symbol name takes
      precedence.