tree fc90baaf35370d104e81dc6ab0bb8508db8ad244
parent 5613488e753e05170967052fab74254eb9763d4f
author Orestis Floros <orestisflo@gmail.com> 1590697523 +0200
committer GitHub <noreply@github.com> 1590697523 -0700
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Improve behaviour regarding "help" (#509)

Also accept -h for help. 

This is the usual behaviour of most utils that accept --help.

Also, now an empty call to ./emsdk does not print the full help, as
discussed in #509.