--graph-output no longer works in version 2.5.0

[Freddie Sherratt]

PR #195 added an extra command line argument but used the wrong argument in the main() operation selection logic. This has made it so it's not possible to enter the --graph-output logic.

pipdeptree/src/pipdeptree/__init__.py

Lines 932 to 935 in a0c9c32

 elif args.output_format: 
     print(render_mermaid(tree)) 
 elif args.output_format: 
     output = dump_graphviz(tree, output_format=args.output_format, is_reverse=args.reverse) 

I think it should be as below

elif args.mermaid:
    print(render_mermaid(tree))
elif args.output_format:
    output = dump_graphviz(tree, output_format=args.output_format, is_reverse=args.reverse)

[Freddie Sherratt]

Just seen #196