Use linux-sandbox via the (new) LinuxSandboxUtil. (second attempt).

RELNOTES: None.
PiperOrigin-RevId: 179705357
diff --git a/src/test/java/com/google/devtools/build/lib/runtime/ProcessWrapperUtilTest.java b/src/test/java/com/google/devtools/build/lib/runtime/ProcessWrapperUtilTest.java
index 6d182f2..043e3e3 100644
--- a/src/test/java/com/google/devtools/build/lib/runtime/ProcessWrapperUtilTest.java
+++ b/src/test/java/com/google/devtools/build/lib/runtime/ProcessWrapperUtilTest.java
@@ -71,7 +71,7 @@
             .setCommandArguments(commandArguments)
             .build();
 
-    assertThat(commandLine).containsExactlyElementsIn(expectedCommandLine);
+    assertThat(commandLine).containsExactlyElementsIn(expectedCommandLine).inOrder();
   }
 
   @Test
@@ -108,6 +108,6 @@
             .setStatisticsPath(statisticsPath)
             .build();
 
-    assertThat(commandLine).containsExactlyElementsIn(expectedCommandLine);
+    assertThat(commandLine).containsExactlyElementsIn(expectedCommandLine).inOrder();
   }
 }