Windows installer defines STASH_HOME with duplicate path separators (\) in setenv.bat

rem
rem Note: If running Atlassian Stash as a Service, settings in this file have no
rem effect. See http://confluence.atlassian.com/display/STASH/Increasing+STASH+memory
rem

rem
rem One way to set the STASH_HOME path is here via this variable.  Simply uncomment it and set a valid path like
rem C:\stash\home. You can of course set it outside in the command terminal; that will also work.
rem
rem WARNING: DO NOT wrap the STASH_HOME value in quotes when setting it here, even if it contains spaces.
rem
set STASH_HOME=C:\\Atlassian\\Stash\\3.2.0\\data