/sys$common/syshlp/helplib.hlb CC, Messages, MULTICHAR  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        A character constant includes more than one character
                or wide character.

 Description    A character constant includes more than one
                character.  While this is valid, it might not have
                been what you intended.

 User Action    Verify that the constant should contain more than one
                character.