Problem:    Error messages for setcmdline() could be better.
Solution:   Use more specific error messages. (Yegappan Lakshmanan,
            closes vim/vim#10995)
https://github.com/vim/vim/commit/25f1e5556259d536c8608185145b0769262873ff

Cherry-pick tv_check_for_opt_number_arg() from Vim.

Problem:    SubRip files are not recognized.
Solution:   Add a pattern for SubRip. (closes vim/vim#11113)
https://github.com/vim/vim/commit/5a4eb55122e45444d3a6c56ce108ce29bc8e52ab

Problem:    'wildignorecase' is sometimes not used for glob().
Solution:   Also use 'wildignorecase' when there are no wildcards.
            (closes vim/vim#10066, closes vim/vim#8350)
https://github.com/vim/vim/commit/a3157a476bfa8c3077d510cc8400093c0d115df5

Problem:    There is no way to get the byte index from a virtual column.
Solution:   Add virtcol2col(). (Yegappan Lakshmanan, closes vim/vim#10477,
            closes vim/vim#10098)
https://github.com/vim/vim/commit/5a6ec10cc80ab02eeff644ab19b82312630ea855

Cherry-pick tv_check_for_number_arg() from Vim.
Cherry-pick pathshorten() doc change.

Problem:    Blueprint files are not recognized.
Solution:   Add a pattern for blueprint files. (Gabriele Musco, closes vim/vim#11107)
https://github.com/vim/vim/commit/cce82a55b8105560a2ef724999c856966337b48e

Problem:    gitignore files are not recognized.
Solution:   Add patterns for the gitignore filetype. (closes vim/vim#11102)
https://github.com/vim/vim/commit/9ba2786f15f0b53a90fd221832a5bedfc6dbfe20

Problem:    Drupal theme files are not recognized.
Solution:   Use php filetype for Drupl theme files.  Remove trailing spaces.
            (Rodrigo Aguilera, closes vim/vim#11096)
https://github.com/vim/vim/commit/8995c4cd4e697141faf74da9a87e0c1221bfb161

Problem:    gitattributes files are not recognized.
Solution:   Add patterns to match gitattributes files. (closes vim/vim#11085)
https://github.com/vim/vim/commit/7d56cfc861e57145f003315efd835cf5dfd5b145

Problem:    Jsonnet files are not recognized.
Solution:   Add a pattern for Jsonnet files. (Cezary Drożak, closes vim/vim#11073,
            closes vim/vim#11081)
https://github.com/vim/vim/commit/2a4c885d54171f68ec2c2d6eb4ae281c7fefb802

Problem:    #{g:x} was seen as a curly-braces expression.
Solution:   Do never see #{} as a curly-braces expression. (closes vim/vim#11075)
https://github.com/vim/vim/commit/7c7e1e9b98d4e5dbe7358c795a635c6f1f36f418