Remove redundant call to `ofstream::close()` from `~PSStrokeRenderer`
and `~TextStrokeRenderer`. ofstream will be destructed automatically.
- For `~Depsgraph`, `std::function`'s constructor can throw.
- Passing throwing statements in the lambda will not be detected by
clang-tidy.
Fix these issues by using lambda as function argument.
Reviewed By: sergey, sybren
Differential Revision: https://developer.blender.org/D9497
88de58fd1a