[gobject-introspection] giscanner/cachestore.py: Clean up a bit

[Chun-wei Fan <fanchunwei src gnome org>]

commit 3701b320a53de2920ffb96982b40d8204d95d504
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Wed Jul 30 14:07:36 2014 +0800

    giscanner/cachestore.py: Clean up a bit
    
    Use the special os.path.expanduser('~'), as it it more portable, instead of
    quering the HOME or HOMEPATH envvar.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732668

 giscanner/cachestore.py |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)
---
diff --git a/giscanner/cachestore.py b/giscanner/cachestore.py
index bcac078..0dbf1fb 100644
--- a/giscanner/cachestore.py
+++ b/giscanner/cachestore.py
@@ -45,10 +45,7 @@ def _get_versionhash():
 def _get_cachedir():
     if 'GI_SCANNER_DISABLE_CACHE' in os.environ:
         return None
-    if os.name == 'nt' and 'MSYSTEM' not in os.environ:
-        homedir = os.environ.get('HOMEPATH')
-    else:
-        homedir = os.environ.get('HOME')
+    homedir = os.path.expanduser('~')
     if homedir is None:
         return None
     if not os.path.exists(homedir):