$ slackcli -h random -f README.md
/usr/local/lib/node_modules/slack-cli/node_modules/request/request.js:340
if (value.hasOwnProperty('value') && value.hasOwnProperty('options')) {
^
TypeError: Cannot read property 'hasOwnProperty' of undefined
at appendFormValue (/usr/local/lib/node_modules/slack-cli/node_modules/request/request.js:340:16)
at Request.init (/usr/local/lib/node_modules/slack-cli/node_modules/request/request.js:354:11)
at new Request (/usr/local/lib/node_modules/slack-cli/node_modules/request/request.js:140:8)
at request (/usr/local/lib/node_modules/slack-cli/node_modules/request/index.js:55:10)
at Function.<anonymous> (/usr/local/lib/node_modules/slack-cli/node_modules/request/index.js:63:12)
at post (/usr/local/lib/node_modules/slack-cli/bin/cmd.js:92:24)
at Array.async.auto.uploadFile (/usr/local/lib/node_modules/slack-cli/bin/cmd.js:249:13)
at listener (/usr/local/lib/node_modules/slack-cli/node_modules/async/lib/async.js:490:46)
at /usr/local/lib/node_modules/slack-cli/node_modules/async/lib/async.js:441:17
at _each (/usr/local/lib/node_modules/slack-cli/node_modules/async/lib/async.js:46:13)