[commands] None default without specified type uses str now.
[commands] None default without specified type uses str now.

jhgg/discord.py,lgkern/PriestPy,Harmon758/discord.py,rapptz/discord.py,imayhaveborkedit/discord.py,Rapptz/discord.py,variablehair/Eggplantato,Harmon758/discord.py,khazhyk/discord.py,mgardne8/discord.py,Theoretical/UselessBot