Problem:    Python cannot handle function name of script-local function.
Solution:   Use <SNR> instead of the special byte code. (Ozaki Kiichi, closes
            vim/vim#3681)
https://github.com/vim/vim/commit/9123c0b31a283f460ed2b6af95080120cf528118

Problem:    Not all parts of printf() are tested.
Solution:   Add a few more test cases. (Dominique Pelle, closes vim/vim#3691)
https://github.com/vim/vim/commit/21e551cce26ea6ff389b6c90f1945facf1a8a066

Problem:    Cannot define a sign with space in the text.
Solution:   Allow for escaping characters. (Ben Jackson, closes vim/vim#2967)
https://github.com/vim/vim/commit/06b056e110005ce0dd97b8c6333405afd06c36fc

Problem:    Undo test may fail on MS-Windows.
Solution:   Also handle lower case drive letters.
https://github.com/vim/vim/commit/56242f2b08737677812513c447955579a19aa620

Problem:    CmdlineEnter command uses backslash instead of slash.
Solution:   Don't treat the character as a file name. (closes vim/vim#2837)
https://github.com/vim/vim/commit/a4baf5b32519855bb176a7aa0e9397c137ca890a

Problem:    Cannot act on edits in the command line.
Solution:   Add the CmdlineChanged autocommand event. (xtal8, closes vim/vim#2603,
            closes vim/vim#2524)

https://github.com/vim/vim/commit/153b704e20f9c269450a7d3ea8cafcf942579ab7

Problem:    'commentstring' not used when adding fold marker in C.
Solution:   Require white space before middle comment part. (mostly by
            Hirohito Higashi)
https://github.com/vim/vim/commit/4af7259b2b35e85c590d54908fcd248d2c733be8

Problem:    :%diffput changes order of lines. (Markus Braun)
Solution:   Do adjust marks when using internal diff.

https://github.com/vim/vim/commit/5f57bdcab77bc417ae0357fe8ad6c7259b6d25df

Problem:    Ml_get error and crash when using "do".
Solution:   Adjust cursor position also when diffupdate is not needed.
            (Hirohito Higashi)

https://github.com/vim/vim/commit/df77cef92ec034796723ffa3adb12e8b46daa98e

Problem:    No event triggered after updating diffs.
Solution:   Add the DiffUpdated event.

https://github.com/vim/vim/commit/e8fa05b5bc2d6d76bf5af50176a63655d00d1110