Merge "gdbrunner: avoid using `[` on older devices."
am: fb4dd3e63b

* commit 'fb4dd3e63b40afd56bea14a9182396c7c9caca41':
  gdbrunner: avoid using `[` on older devices.

Change-Id: Ie28ff67e4f019cd26d0ff7406aa3b51c7a40864a