Replace wget_strlcpy by wget_strscpy
Whenever we don't need/check the return value of wget_strlcpy we should use wget_strscpy (to be written yet).
It does more or less the same but doesn't count the length of the source string, which sometimes has side effects (unneeded CPU usage).
We should stick with the https://www.kernel.org/doc/htmldocs/kernel-api/API-strscpy.html. Instead of returning -E2BIG we should use -1.