openSUSE Security Update : viewvc (openSUSE-2021-84)

This update for viewvc fixes the following issues : - update to 1.1.28 boo1167974, CVE-2020-5283 : - security fix: escape subdir lastmod file name 211 - fix standalone.py first request failure 195 - suppress stack traces with option to show 140 - distinguish text/binary/image files by icons 166,...