Library /sys$common/syshlp/dbg$help.hlb DEBUG, Messages, EDITDISVER  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 the original version is file_specification

    Facility: DEBUG, VMS Debugger

    Explanation: The original file has been revised since the start
    of the debug session. This message indicates that source lines
    may not correspond to the ones used to compile this module

    User Action: Use SET SOURCE command to point to the original
    source file if possible and retry operation.