[VS] LIB also needs trailing slashes

Otherwise, the VS linker looks for a file named LIBOLDNAMES.lib
instead of OLDNAMES.lib in directory LIB.

Belonging to [master]:
  - #2227
  - OpenModelica/OpenModelica-testsuite#858

Author: sjoelund

scripts/wine-msvc.source

@@ -13,7 +13,7 @@ export WINEDEBUG=-all
 export DevEnvDir="$WSDK\\Common7\\IDE"
 export WINEPATH="$WSDK/Common7/IDE/CommonExtensions/Microsoft/TestWindow;C:/Program Files (x86)/MSBuild/14.0/bin;$WSDK/Common7/IDE/;$WSDK/VC/bin/;$WSDK/Common7/Tools;C:/WINDOWS/Microsoft.NET/Framework/v4.0.30319;$WSDK\\VC\\VCPackages;$WSDK\\Team Tools\\Performance Tools;$W10SDK\\8.1\\bin\\x86;c:\\windows;c:\\windows\\system32;"
 export INCLUDE="$WSDK/VC/INCLUDE;$WSDK/VC/ATLMFC/INCLUDE;$W10SDK/10/include/10.0.10240.0/ucrt;$W10SDK/8.1/include/shared;$W10SDK/8.1/include/um;$W10SDK/8.1/include/winrt;"
-export LIB="$WSDK/VC/LIB;$WSDK/VC/ATLMFC/LIB;$W10SDK/10/lib/10.0.10240.0/ucrt/x86;$W10SDK/8.1/lib/winv6.3/um/x86;"
+export LIB="$WSDK/VC/lib/;$WSDK/VC/ATLMFC/LIB;$W10SDK/10/lib/10.0.10240.0/ucrt/x86;$W10SDK/8.1/lib/winv6.3/um/x86;"
 export LIBPATH="C:/WINDOWS/Microsoft.NET/Framework/v4.0.30319;$WSDK/VC/lib/;$WSDK/VC/ATLMFC/LIB;$W10SDK/8.1/References/CommonConfiguration/Neutral;/Microsoft.VCLibs/14.0/References/CommonConfiguration/neutral;"
 export VS140COMNTOOLS="$WSDK\\Common7\\Tools"
 export VSINSTALLDIR="$WSDK\\"