hugin_executor -V (return code: 255)
ERROR: Switch --assistant or --stitching is required.
hugin_executor -help (return code: 255)
Usage: hugin_executor [-h] [-a] [-s] [-t <num>] [-p <str>] [-u <str>] [-d] input.pto
-h, --help shows this help message
-a, --assistant execute assistant
-s, --stitching execute stitching with given project
-t, --threads=<num> number of used threads
-p, --prefix=<str> prefix used for stitching
-u, --user-defined-output=<str> use user defined commands in given file
-d, --dry-run only print commands