Trim sandbox prefix from cgo generated line directives (#1235)
Trim sandbox prefix from cgo generated line directives (#1235)

* Trim sandbox previx from cgo genertaed line directives

* Review fixes

bazelbuild/rules_go,Xjs/rules_go,Xjs/rules_go,bazelbuild/rules_go,bazelbuild/rules_go,Xjs/rules_go,bazelbuild/rules_go,bazelbuild/rules_go,Xjs/rules_go,Xjs/rules_go