Merge pull request scala#5666 from Philippus/issue/10030

SI-10030 - added quotes in case the path contains a space and an 8.3-…

Author: lrytz

src/compiler/scala/tools/ant/templates/tool-windows.tmpl

@@ -156,7 +156,7 @@ rem (see http://support.microsoft.com/?kbid=833431)
 rem set _SCALA_HOME=%~dps0..
 :set_home
   set _BIN_DIR=
-  for %%i in (%~sf0) do set _BIN_DIR=%_BIN_DIR%%%~dpsi
+  for %%i in ("%~sf0") do set _BIN_DIR=%_BIN_DIR%%%~dpsi
   set _SCALA_HOME=%_BIN_DIR%..
 goto :eof