tests: prefer "test ! -e FILE" to check that a file doesn't exist

* t/autohdrdry.sh: Here, rather than using "test ! -r FILE".

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

diff --git a/t/autohdrdry.sh b/t/autohdrdry.sh
index 3bd474e..af6c198 100755 (executable)
--- a/t/autohdrdry.sh
+++ b/t/autohdrdry.sh
@@ -37,6 +37,6 @@ $MAKE
 rm -f config.h
 $MAKE -n
 test -f stamp-h1
-test ! -r config.h
+test ! -e config.h
 
 :