Update Gerrit hook command-line parameters

As of Gerrit 3.2, some hook command lines now include username
parameters of various sorts in addition to the IDs. Also
patchset-created no longer passes an --is-draft parameter, as that
is now no longer a Gerrit feature. Add the missing new parameters
and remove the defunct one.

Change-Id: I5808e1b3398926810ba0e54bf132a0adeac5d2ac
1 file changed