```csv
# PlantUML uses GRAPHVIZ_DOT to find dot, if it isn't at
# /usr/bin/dot.
GRAPHVIZ_DOT,`which dot`
```

Add MacPorts dirs and ~/bin to PATH.
user
```csv
PATH,/opt/local/sbin
PATH,/opt/local/bin
PATH,$HOME/bin
# PlantUML uses GRAPHVIZ_DOT to find dot, if it isn't at
# /usr/bin/dot.
GRAPHVIZ_DOT,`which dot`
```
assistant