Minor: use shlex to parse patch options

slapos/recipe/build.py

@@ -338,7 +338,7 @@ class Script:
       if patch_options is None:
         patch_options = []
       else:
-        patch_options = patch_options.split(' ')
+        patch_options = shlex.split(patch_options)
       if patch_binary is None:
         patch_binary = 'patch'
       kwargs = dict()