Locate plugin

Hi,
I have some troubles with ${locate::Open}. I use parametr /-PF=${UpgradeExcludeDirectories} to excluding but my string of excluded files is too long and has been truncated.
I found two possible reasons:
1, I found magic constant 🙂 in source code NSIS_MAX_STRLEN. Can you create bigger buffer please?
2, add parameter which will be able to define excluded files as relative path
Have you any idea or is exist any way how can i use relative paths for excluded files?

Many thanks guys