Johan Corveleyn wrote on Thu, Aug 11, 2016 at 15:46:54 +0200: > svndumptool (if you want, you might be able to visually verify if it's > fixed by opening the dumpfile before and after with a text editor (but > caution: do not edit by hand, there are checksums and content-lengths; > it's easy to corrupt the dumpfile)).
Some text editors corrupt binary files that they open, even if no editing operation is done. The safe thing is either to use a pager (such as /usr/bin/more or /usr/bin/less) or to edit a copy of the dumpfile.