EXPORT_FOLDER path concatenation missing a separator.

[andrew-otiv]

Example: If you set EXPORT_FOLDER=foo/bar, the uml file will be generated at foo/barSomeStateMachine.uml

i.e. if this is string concatenation, the trailing slash is missing.

Temporary workaround: Make sure you include a trailing slash in the EXPORT_FOLDER environment variable.

[jmg-duarte]

This one was a conscious decision, I remember thinking something among the lines "it's a folder, use the /" because I didn't have the time nor did it add a lot of value back then.