test-update-copyright: don't let envvar setting cause test failure

[pspp] / tests / test-update-copyright.sh

diff --git a/tests/test-update-copyright.sh b/tests/test-update-copyright.sh
index 362f9e24cf874e09aba5379f3c698ee891316a81..2d1022a9995ed878cb146b4d2b2091b9f0988d71 100755 (executable)
--- a/tests/test-update-copyright.sh
+++ b/tests/test-update-copyright.sh
@@ -47,6 +47,10 @@ echo a > $TMP-in
     exit 77
   }
 
+# Do not let a different envvar setting perturb results.
+UPDATE_COPYRIGHT_MAX_LINE_LENGTH=72
+export UPDATE_COPYRIGHT_MAX_LINE_LENGTH
+
 ## ----------------------------- ##
 ## Examples from documentation.  ##
 ## ----------------------------- ##