Problem:    Useless check for NULL when calling vim_free().
Solution:   Remove the check. (Dominique Pelle)

Problem:    Year number for :undolist can be confused with month or day.
Solution:   Change "%y" to "%Y".

Problem:    When 'cursorbind' is set another window may scroll unexpectedly
            when 'scrollbind' is also set. (Xavier Wang)
Solution:   Don't call update_topline() if 'scrollbind' is set.

Problem:    Can't get the value of "b:changedtick" with getbufvar().
Solution:   Make it work. (Christian Brabandt)

Problem:    Conceal: using Tab for cchar causes problems. (ZyX)
Solution:   Do not accept a control character for cchar.

Problem:    Changing 'fileformat' and then using ":w" in an empty file sets
            the 'modified' option.
Solution:   In unchanged() don't ignore 'ff' for an empty file.

Problem:    When using ":make", typing the next command and then getting the
            "reload" prompt the next command is (partly) eaten by the reload
            prompt.
Solution:   Accept ':' as a special character at the reload prompt to accept
            the default choice and execute the command.

Problem:    ino_t defined with wrong size.
Solution:   Move including auto/config.h before other includes. (Marius
            Geminas)

Problem:    When using :normal v:count isn't set.
Solution:   Call normal_cmd() with toplevel set to TRUE.

Problem:    Crash when splitting a window with zero height. (Yukihiro
            Nakadaira)
Solution:   Don't set the fraction in a window with zero height.