Consideration of spaces in path for windows
|Reported by:||gotoh@…||Owned by:||pkropf|
On windows, graphviz commands are installed into "C:\Program Files\ATT\bin"
by deafult. The path contains space.
Thus, command execution will fail if we specified like this
[graphviz] cmd_path = C:\Program Files\ATT\bin
There's workarround by specifying pat by short name like "c:\Progra~1\ATT\bin".
It is good for execution and also command existance checking.
I think it is better that plugins surrounds command string by double-quote
on making command line for os.system() call.