cli-test: a tool for testing command-line programs.

Not looking for other users right now, this is just enough to test
unzip/zip/zipinfo.

This includes tests for unzip and ziptool, along with a change to
unzip's behavior to fix AOSP `make dist` when using ziptool unzip.

Also add the boilerplate to run these tests on the device, in presubmit.

Fix command name in --help output.

Test: atest ziptool-tests
Change-Id: I5c0215a3ab8cb2cd5fc517ed9c188f81a7bf4520
diff --git a/libziparchive/ziptool-tests.xml b/libziparchive/ziptool-tests.xml
new file mode 100644
index 0000000..211119f
--- /dev/null
+++ b/libziparchive/ziptool-tests.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2019 The Android Open Source Project
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<configuration description="Config for running ziptool-tests through Atest or in Infra">
+    <option name="test-suite-tag" value="ziptool-tests" />
+    <!-- This test requires a device, so it's not annotated with a null-device. -->
+    <test class="com.android.tradefed.testtype.binary.ExecutableHostTest" >
+        <option name="binary" value="run-ziptool-tests-on-android.sh" />
+        <!-- Test script assumes a relative path with the cli-tests/ folders. -->
+        <option name="relative-path-execution" value="true" />
+        <!-- Tests shouldn't be that long but set 15m to be safe. -->
+        <option name="per-binary-timeout" value="15m" />
+    </test>
+</configuration>