Correct scp commands in documentation to include -p

Use -p option to preserve the permissions of the remote file,
which are offered as 755 for executable scripts.

Reported-by: Marek Zawirski <marek.zawirski@gmail.com>
Change-Id: I2fc73fcfe2da644774e2e91e8015c31256ad341d
Signed-off-by: Shawn O. Pearce <sop@google.com>
4 files changed