*** empty log message ***

diff --git a/src/du-tests b/src/du-tests
index bfffbc96a1fa7dd7a460a5292c523aa587580063..976678d33949955f65e5c218002967061af42a7a 100755 (executable)
--- a/src/du-tests
+++ b/src/du-tests
@@ -1,4 +1,9 @@
 #!/bin/bash
+cat - <<\EOF
+Invoke e.g., like this
+DU1=du-4.5.2 DU2=du ./du-tests
+EOF
+
 test -x "$DU1" || { echo DU1 envvar not set; exit 1; }
 test -x "$DU2" || { echo DU2 envvar not set; exit 1; }
 # Expects $DU1 and $DU2 to be the binaries to compare.