Fix bug when specifying raises to True in git.call
Fix bug when specifying raises to True in git.call

Change-Id: I619c4e9498100eb6cc1341f50df44733bcc0a06a
Reviewed-on: http://gerrit.aldebaran.lan/26481
Tested-by: gerrit
Reviewed-by: ncornu <13ba26b8f12d26c819f48749c65f2f7f5c1d13db@aldebaran-robotics.com>

dmerejkowsky/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild