Merge pull request #1301 from uhafner/check-return-value-spotbugs

Do not hide "return value ignored" violations in tests

Author: uhafner

etc/spotbugs-exclusion-filter.xml

@@ -23,7 +23,7 @@
     <Class name="~.*Assert" />
   </Match>
   <Match>
-    <Bug code="UuF, UwF, SIC, NP, Dm, UI, RV, DMI, EI, THROWS" />
+    <Bug code="UuF, UwF, SIC, NP, Dm, UI, DMI, EI, THROWS" />
     <Class name="~.*(Test|Benchmark).*" />
   </Match>
   <Match>