Bug 639322 part 3: provide users with a sensible first time "Save As..." path on Windows

While $HOME is fine on linux, on Windows the most sensible location is "My Documents"
(or its translated equivalent).

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@20101 57a11ea4-9604-0410-9ed3-97b8803252fd

src/app-utils/gnc-ui-util.c

@@ -183,7 +183,11 @@ gnc_get_default_directory (const gchar *gconf_section)
 
     dir = gnc_gconf_get_string (gconf_section, KEY_LAST_PATH, NULL);
     if (!dir)
+#ifdef G_OS_WIN32
+        dir = g_strdup (g_get_user_data_dir ()); /* equivalent of "My Documents" */
+#else
         dir = g_strdup (g_get_home_dir ());
+#endif
 
     return dir;
 }