Allow the shell to create files on the sdcard.
diff --git a/shell.te b/shell.te
index a0d0205..0c67c46 100644
--- a/shell.te
+++ b/shell.te
@@ -14,7 +14,7 @@
 
 # Access sdcard.
 allow shell sdcard:dir rw_dir_perms;
-allow shell sdcard:file rw_file_perms;
+allow shell sdcard:file create_file_perms;
 
 r_dir_file(shell, apk_data_file)
 allow shell dalvikcache_data_file:file write;