Bug 1144386 - Avoid non-resource files when packaging resources for GeckoView. r=mcomella

This was just an error (on my part): I double-escaped slashes,
thinking that Make required escaping as well as the shell.

--HG--
extra : commitid : HLuwTvkaIl4
extra : rebase_source : 9d85d958d99a7ed5c35befdcee0245ec034e1354
extra : histedit_source : eaaac0578cacf96da86a2566144a93166be4396e

mobile/android/base/Makefile.in

@@ -351,7 +351,7 @@ all_resources = \
 # $(1): zip file to add to (or create).
 # $(2): directory to zip contents of.
 define zip_directory_with_relative_paths
-cd $(2) && zip -q $(1) -r * -x $(subst *,\\*,$(not_android_res_files))
+cd $(2) && zip -q $(1) -r * -x $(subst *,\*,$(not_android_res_files))
 
 endef