Fix sandboxing tests after changes to the error messages

Fixes bazelbuild#3373.

PiperOrigin-RevId: 161799558

src/test/shell/bazel/bazel_sandboxing_test.sh

@@ -496,7 +496,7 @@ EOF
   expect_not_log "Executing genrule //:test failed: linux-sandbox failed: error executing command"
 
   # This is the error message telling us that some output artifacts couldn't be copied.
-  expect_log "Could not move output artifacts from sandboxed execution.*(Permission denied)"
+  expect_log "Could not move output artifacts from sandboxed execution."
 
   # The build fails, because the action didn't generate its output artifact.
   expect_log "ERROR:.*Executing genrule //:test failed"
@@ -521,7 +521,7 @@ EOF
 
   # This is the error message printed by the EventHandler telling us that some
   # output artifacts couldn't be copied.
-  expect_log "ERROR: I/O exception while extracting output artifacts from sandboxed execution.*(Permission denied)"
+  expect_log "Could not move output artifacts from sandboxed execution"
 
   # This is the UserExecException telling us that the build failed.
   expect_log "Executing genrule //:test failed:"