File dnglab-renamed-exec-usage-msg.patch of Package dnglab

Index: dnglab-0.7.0/rawler/src/bin/benchmark.rs
===================================================================
--- dnglab-0.7.0.orig/rawler/src/bin/benchmark.rs
+++ dnglab-0.7.0/rawler/src/bin/benchmark.rs
@@ -5,8 +5,8 @@ use std::time::Instant;
 use rawler::decoders::RawDecodeParams;
 use rawler::rawsource::RawSource;
 
-fn usage() {
-  println!("benchmark <file>");
+fn usage(exec: &str) {
+  println!("Usage: {} <file>", exec);
   std::process::exit(1);
 }
 
@@ -20,7 +20,7 @@ fn error(err: &str) {
 fn main() {
   let args: Vec<_> = env::args().collect();
   if args.len() != 2 {
-    usage();
+    usage(&args[0]);
   }
   let file = &args[1];
   println!("Loading file \"{}\"", file);