Document usage, perform minor cleanups.
Test: treehugger
Bug: 173466220
Change-Id: I5aa09c2941c0eceb8ae635b9e613ad932d38aebb
diff --git a/zip/cmd/main.go b/zip/cmd/main.go
index d603586..fc976f6 100644
--- a/zip/cmd/main.go
+++ b/zip/cmd/main.go
@@ -12,6 +12,13 @@
// See the License for the specific language governing permissions and
// limitations under the License.
+// soong_zip is a utility used during the build to create a zip archive by pulling the entries from
+// various sources:
+// * explicitly specified files
+// * files whose paths are read from a file
+// * directories traversed recursively
+// It can optionally change the recorded path of an entry.
+
package main
import (