Problem:    Can't build some multi-byte code with C89.
Solution:   Move code to after declarations. (Joachim Schmitz)

Problem:    Crash when using undotree(). (Christian Brabandt)
Solution:   Increase the list reference count.  Add a test for undotree()
            (Lech Lorens)

Problem:    Crash when using very long regexp. (Peter Odding)
Solution:   Reset reg_toolong. (Carlo Teubner)

Mechelynck)

Problem:    Crash with specific BufWritePost autocmd. (Peter Odding)
Solution:   Don't free the quickfix title twice. (Lech Lorens)

Problem:    ":find" completion doesn't work when halfway an environment
            variable. (Dominique Pelle)
Solution:   Only use in-path completion when expanding file names. (Nazri
            Ramliy)

Problem:    ":find" completion doesn't work when halfway an environment
            variable. (Dominique Pelle)
Solution:   Only use in-path completion when expanding file names. (Nazri
            Ramliy)

message.