display: skip link test if go binary not found

Not all setups have the go binary in the expected path. Skip this
test if this is the case.

Change-Id: Ia6fe31216327c1ebd844f1d59673742d2c75e9f2
Reviewed-on: https://go-review.googlesource.com/11287
Reviewed-by: Nigel Tao <nigeltao@golang.org>
1 file changed