Fix bug where indentation guide is drawn over text when the indentation is in a different style to the default style so spaces are different widths.
Fix bug where indentation guide is drawn over text when the indentation is
in a different style to the default style so spaces are different widths.

R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone