Ensure different Boost versions get different names

CI/before_script.msvc.sh

@@ -328,7 +328,7 @@ if [ -z $SKIP_DOWNLOAD ]; then
 	if [ -z $APPVEYOR ]; then
 		download "Boost 1.67.0" \
 			"https://sourceforge.net/projects/boost/files/boost-binaries/1.67.0/boost_1_67_0-msvc-${MSVC_VER}-${BITS}.exe" \
-			"boost-1.67.0-msvc${MSVC_YEAR}-win${BITS}.exe"
+			"boost-1.67.0-msvc${MSVC_VER}-win${BITS}.exe"
 	fi
 
 	# Bullet
@@ -434,7 +434,7 @@ fi
 			rm -rf Boost
 			CI_EXTRA_INNO_OPTIONS=""
 			[ -n "$CI" ] && CI_EXTRA_INNO_OPTIONS="//SUPPRESSMSGBOXES //LOG='boost_install.log'"
-			"${DEPS}/boost-1.67.0-msvc${MSVC_YEAR}-win${BITS}.exe" //DIR="${CWD_DRIVE_ROOT}" //VERYSILENT //NORESTART ${CI_EXTRA_INNO_OPTIONS}
+			"${DEPS}/boost-1.67.0-msvc${MSVC_VER}-win${BITS}.exe" //DIR="${CWD_DRIVE_ROOT}" //VERYSILENT //NORESTART ${CI_EXTRA_INNO_OPTIONS}
 			mv "${CWD_DRIVE_ROOT_BASH}" "${BOOST_SDK}"
 		fi
 		add_cmake_opts -DBOOST_ROOT="$BOOST_SDK" \