Text is garbled if the user name is long

[laszlokertesz]

I compiled nethogs from source. It works but the output is messed up if the user name is long. Here i have a user name in the form of abcdef.abcdefg@abcdefg.abcd (Active Directory user).
Here is the line with a process called iceweasel:

2957 abcdef.abiceweaseldefg.abcd br0 2.913 13.272 KB/sec

Notice that the first 9 letters are followed by the program name then followed by some other letters from the user name.