Commit 0c1fa8b enables multiline value for "Description:". Update
taskedit.vim syntax file for this:
1) Now all keys are required to be indented exactly 2 spaces.
2) We treat all keys equally, allowing all values to span multiple
lines, up until the next key.
Improved VIM Support
- added vim support for undo.data
- eliminated misc. whitespace per Bram Moolenaar's request
- added Updated time stamp per Bram Moolenaar's request