Refactor bwhist_get_bandwidth_lines()

We've done a lot to improve our internal APIs since we wrote this
code, and it shows. We can just use a buf_t to build up the
bandwidth lines, and save a bunch of stack fiddling.

Additionally, we can use a function to format a single line, and
thereby get rid of the cheezy pattern that does

    for (i=0;i<n;++i) {
        switch (i) {
           ...
        }
        ...
    }

0 files changed, 0 insertions, 0 deletions