Trim whitespace when converting string to int

[lmorg]

Describe the problem:

» out $gitstatus -> sed 1d -> wc -l -> format int
Error in `format` (0,39): [int marshaller] cannot convert data into the numeric type 'int'

» out $gitstatus -> sed 1d -> wc -l
       0

format int fails because of the whitespace padding

Possible ways to implement:
Literally just a Trim...

Additional context:
N/A