mypass: Add functionality to get multiple values

bin/mypass

@@ -43,7 +43,7 @@ def cmd_get(*args):
         print(get_stdout(['pass', 'show', args[0]]).split(b'\n')[0].decode())
         return 0
 
-    if len(args) != 2:
+    if len(args) < 2:
         print("what do you want to get?")
         return 1
 
@@ -62,7 +62,8 @@ def cmd_get(*args):
         print("invalid YAML data, not a dict")
         return 2
 
-    keydata = extract_from_dict(data, args[1])
+    for element in args[1:]:
+        keydata = extract_from_dict(data, element)
         if isinstance(keydata, list) or isinstance(keydata, dict):
             print(yaml.safe_dump(keydata, default_flow_style=False).strip())
         else: