Disable InvalidPackage lint check for testutils

Note this case is special in that JUnit is an actual
compile dependency, as opposed to a testCompile or
androidTestCompile dependency.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=184119235

testutils/build.gradle

@@ -22,6 +22,13 @@ android {
         minSdkVersion project.ext.minSdkVersion
         targetSdkVersion project.ext.targetSdkVersion
     }
+
+    lintOptions {
+        // Truth depends on JUnit, which depends on java.lang.management, which is not part of
+        // Android. Remove this when JUnit 4.13 or later is used. See:
+        // https://github.com/junit-team/junit4/pull/1187.
+        disable 'InvalidPackage'
+    }
 }
 
 dependencies {