gjs -V (return code: 1)
Failed to open file '--version': No such file or directory
gjs --help (return code: 0)
Usage:
gjs [OPTION...]
Options:
-c, --command=COMMAND Program passed in as a string
-C, --coverage-prefix=PREFIX Add the prefix PREFIX to the list of files to generate coverage info for
--coverage-output=DIR Write coverage output to a directory DIR. This option is mandatory when using --coverage-path
-I, --include-path=DIR Add the directory DIR to the list of directories to search for js files.