Simplify python launcher, use __main__.py

Uses more python rather than C++, and skips less of Py_Main.

Test: build/soong/python/tests/runtests.sh
Change-Id: I03997d88e2e16047c96bb4e00e530229c42b3325
diff --git a/cmd/merge_zips/merge_zips_test.go b/cmd/merge_zips/merge_zips_test.go
index 19fa5ed..dbde270 100644
--- a/cmd/merge_zips/merge_zips_test.go
+++ b/cmd/merge_zips/merge_zips_test.go
@@ -221,7 +221,7 @@
 			out := &bytes.Buffer{}
 			writer := zip.NewWriter(out)
 
-			err := mergeZips(readers, writer, "", "", "",
+			err := mergeZips(readers, writer, "", "",
 				test.sort, test.jar, false, test.stripDirEntries, test.ignoreDuplicates,
 				test.stripFiles, test.stripDirs, test.zipsToNotStrip)