fixed: error: bufio.Scanner token too long

[idweball]

• I have read the contributing guide.
• Issue:

Implementation

rump -from ./redis.dump -to redis://127.0.0.1:6379/0

When the above instruction is executed, if a key of redis is too large, it will cause a line to be too long, exceeding bufio. MaxScanTokenSize, causing bufio.Scanner token too long error

This commit is used to fix the above error

[shollingsworth]

Running into this as well. Confirmed @idweball's fix worked after fiddling with the buffer values! thanks 👍