Clean tests/rpn1.out

- There was another leftover in the tests folder after
  make clean: rpn1.out
  It is a png file created during the test rpn1
- This is a followup commit to PR #1049

diff --git a/tests/Makefile.am b/tests/Makefile.am
index fd82732d5f2cd61b2ec496e19a28540f45217300..7586bda8837322fa9923c94fe59f596f1475aea2 100644 (file)
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -31,4 +31,4 @@ CLEANFILES = *.rrd \
        ct.out dur.out graph1.output.out \
        modify5-testa1-mod.dump modify5-testa2-mod.dump \
        modify5-testa1-mod.dump.tmp modify5-testa2-mod.dump.tmp \
-       rpn1.output.out
+       rpn1.out rpn1.output.out