Ignore empty string
Ignore empty string

When a string is empty, we currently create an entry for it, check
the validity of string and early return if it doesn't contain any
data.

MarkJerde/Flycut,TermiT/Flycut,MarkJerde/Flycut,TermiT/Flycut,unixorn/Flycut,unkhz/Flycut,bradparks/Flycut,bradparks/Flycut,MarkJerde/Flycut,superboonie/Flycut,TermiT/Flycut,MarkJerde/Flycut,superboonie/Flycut,unixorn/Flycut,fiddlerwoaroof/Flycut,TermiT/Flycut,fiddlerwoaroof/Flycut,TermiT/Flycut