bash - Remove blank line from awk output -

i trying remove leading whitespace awk output. when use command, leading whitespace displayed.

diff  test1.txt test.txt | awk '{print $2}'  output:   asdfasdf.txt test.txt weqtwqe.txt 

how can remove leading whitespace using awk?

thanks in advance

if want print lines $2 exists can conditionally on number of fields

awk 'nf>1{print $2}' 

will do.