Log Message:
graphviz: updated to 6.0.2

6.0.2

Fixed

- Using `aspect` with a custom value in the `packmode` attribute is no longer
  misparsed.
- Smyrna bounding box computation has been corrected. There was a regression in
  4.0.0 that resulted in a degenerate bounding box being computed for any input
  graph.
- Smyrna warnings about the `on_attrRB0_clicked` and `on_attrSearchBtn_clicked`
  handlers being not found have been fixed and the buttons to which they are
  wired should be functional again. This was a regression in 2.50.0
- Smyrna warnings about the `mAttributesSlot` handler being not found have been
  fixed and the button to which it is wired should be functional again. This was
  a regression in 2.49.2
- Graphviz no longer fails to load private Ghostscript symbols ("Could not load
  `libgvplugin_gs.so.6`)
- trailing commas issue with fdp layout
- Missing `-S` in `sccmap` man page usage summary.
- In `sccmap`, a `-v` option following a `-S` option now re-enables strongly
  connected component output that the man page implied.