Code style for bazelPath.groovy: move the affectation of bazel to the else branch
Code style for bazelPath.groovy: move the affectation of bazel to the else branch

This address a comment on http://cr.bazel.build/11293 that was misunderstood by
your servitor.

Change-Id: Ic5e1cf73c474005345e513f1ce606c2b3ded19b2

bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration