[Libguestfs] Re: [nbdkit PATCH] linuxdisk: Simplify computation of last line of du

No need to re-strdup things in a loop of getline - since we are using popen to get the output in the first place, we can use the shell to hand us just the final line. Signed-off-by: Eric Blake <eblake(a)redhat.com&gt; --- Even though the POSIX folks ruled today that our "ab"use of a getline() loop to determine the final line of du output was non-portable [1], I was still miffed at the malloc overhead that our workaround for rawhide glibc entailed. So this is the result I came up with. [1] https://www.austingroupbugs.net/bug_view_page.php?bug_id=1953