adapt and fix memoryleaks in Em4x50

client/src/cmdhfthinfilm.c

@@ -107,7 +107,7 @@ static int CmdHfThinFilmInfo(const char *Cmd) {
         arg_param_end
     };
     CLIExecWithReturn(ctx, Cmd, argtable, true);
-
+    CLIParserFree(ctx);
     return infoThinFilm(true);
 }
 

client/src/cmdwiegand.c

@@ -123,7 +123,7 @@ int CmdWiegandDecode(const char *Cmd) {
     void *argtable[] = {
         arg_param_begin,
         arg_lit0("p", "parity", "ignore invalid parity"),
-        arg_strx1(NULL, "raw", "<hex>", "raw hex to be decoded"),
+        arg_strx1("r", "raw", "<hex>", "raw hex to be decoded"),
         arg_param_end
     };
     CLIExecWithReturn(ctx, Cmd, argtable, false);