Corrected run_svg_test_suite.py
Corrected run_svg_test_suite.py

Reordered arguments for write_png to match changes in python api
Added check for empty path to svg-suite

lukas-ke/faint-graphics-editor,lukas-ke/faint-graphics-editor,lukas-ke/faint-graphics-editor,lukas-ke/faint-graphics-editor