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-rwxr-xr-xsrc/du-tests5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/du-tests b/src/du-tests
index bfffbc96a..976678d33 100755
--- 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.