Extract statistics on incremental update success rates
The Tor Browser updater supports incremental (binary delta) updates on all platforms. However, if the user changes a file that is about to be updated, the incremental update will fail, and a full update will be downloaded instead. This seems most likely to happen on Linux, where it may be common for people to modify their start-tor-browser script with custom changes (see #15456 (moved)). We would like to know how common this is among our userbase, so we can determine if we should devote effort into #15456 (moved) and any other potential similar cases (like torrc changes, for example).
To find this out, we need relative hit counts from one or more of our dist.tpo hosts for tor-browser-linux*-4.5a5_.mar and tor-browser-linux-4.5a4_*.mar.
4.5a5 was released on March 31st, and 4.5a4 was released on February 25. Hit counts for those mar files from the following week or two are probably most relevant.