Fix perl warnings with MSVC build script

2020-07-06 00:21:12 Michael Paquier (michael-kun) Closed in commitfest 2020-07 with status: Committed 2020-07-06 00:21:12 Michael Paquier (michael-kun) Changed committer to michael-kun 2020-07-04 19:21:07 Juanjo Santamaria Flecha (juanjo.santamaria.gmail.com) New status: Ready for Committer 2020-07-04 18:58:35 Juanjo Santamaria Flecha (juanjo.santamaria.gmail.com) Added juanjo.santamaria.gmail.com as reviewer 2020-05-22 04:02:31 Michael Paquier (michael-kun) Changed authors to Michael Paquier (michael-kun) 2020-05-22 04:02:31 Michael Paquier (michael-kun) Changed targetversion to 14 2020-05-22 04:02:20 Michael Paquier (michael-kun) Attached mail thread 20200430150608.6dc6b8c4@antares.wagner.home 2020-05-22 04:02:20 Michael Paquier (michael-kun) Created patch record