Fix the print of the apk missing

Test: unit tests
Bug: 215709281
Change-Id: I4cc89c99a4bd4e85a19949c5e80b5aaa82477db3
diff --git a/tools/cts-tradefed/tests/src/com/android/compatibility/common/tradefed/presubmit/ApkPackageNameCheck.java b/tools/cts-tradefed/tests/src/com/android/compatibility/common/tradefed/presubmit/ApkPackageNameCheck.java
index ced6aaf..90ffb97 100644
--- a/tools/cts-tradefed/tests/src/com/android/compatibility/common/tradefed/presubmit/ApkPackageNameCheck.java
+++ b/tools/cts-tradefed/tests/src/com/android/compatibility/common/tradefed/presubmit/ApkPackageNameCheck.java
@@ -129,7 +129,7 @@
                     File apkFile = FileUtil.findFile(config.getParentFile(), apkName);
                     if (apkFile == null || !apkFile.exists()) {
                         fail(String.format("Module %s is trying to install %s which does not "
-                                + "exists in testcases/", config.getName(), apkFile));
+                                + "exists in testcases/", config.getName(), apkName));
                     }
                     AaptParser res = AaptParser.parse(apkFile);
                     assertNotNull(res);