runtime(vim): Update base-syntax, improve number matching (vim/vim#14175)
- Limit blob literals to an even number of hexadecimal digits and
correctly located dots.
- Match octal numbers.
The current version unsuccessfully attempts to match a leading '-' as
part of the float literal. It's actually parsed as part of the literal
for all numbers but the syntax file hasn't matched it like that for a
long time and highlights negative numbers as UNARY-MINUS NUMBER. This
will be fixed when better expression matching is implemented.
5cd86c6cff
Co-authored-by: dkearns <dougkearns@gmail.com>
59e3bcfb00
