**System Information**
Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce 310M/PCIe/SSE2 NVIDIA Corporation 3.3.0
**Blender Version**
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: `rBf6cb5f54494e`
Worked: (optional)
**Short description of error**
When subdivide a grease pencil stroke, the result is not what "number of cuts" means, but the power of 2.
This is inconsistent with "subdivide" operator on Mesh edge or Curve spline, which can really get "number of cuts".
This problem make grease pencil hard to draw a table with arbitary columns/rows.
Same problem happening on Blender 2.79/2.80/2.81.
**Exact steps for others to reproduce the error**
1) draw a simple line with grease pencil.
2) select above grease pencil object and enter edit mode
3) select 2 adjacent points on the stroke
4) "subdivide" operator, and change "number of cuts" in option dialog. for example, "3" as number of cuts.
5) segments result is 8, not 4 (3+1).
{F8201411}
{F8201413}
{F8201415}
{F8201417}