fc-list --version (return code: 0)
fontconfig version 2.11.94
fc-list --help (return code: 0)
usage: fc-list [-vqVh] [-f FORMAT] [--verbose] [--format=FORMAT] [--quiet] [--version] [--help] [pattern] {element ...}
List fonts matching [pattern]
-v, --verbose display entire font pattern verbosely
-f, --format=FORMAT use the given output format
-q, --quiet suppress all normal output, exit 1 if no fonts matched
-V, --version display font config version and exit
-h, --help display this help and exit