FIX: this should remove some warnings while compiling on linux and when running Travis-CI in a docker container.

some format specifier for uint64_t
and getting the git history in the perl script.

client/cmdlfem4x.c

@@ -58,7 +58,8 @@ int CmdEM410xRead(const char *Cmd)
 		return 0;
 	}
 	char id[12] = {0x00};
-	sprintf(id, "%010llx",lo);
+	//sprintf(id, "%010llx",lo);
+	 sprintf(id, "%010" PRIu64 ", lo);	
 	
 	global_em410xId = id;
 	return 1;