Don't hardcode path to xargs

ant.spec

@@ -36,7 +36,7 @@
 
 Name:           ant
 Version:        1.10.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Epoch:          0
 Summary:        Java build tool
 Summary(it):    Tool per la compilazione di programmi java
@@ -353,7 +353,7 @@ find -name build.xml -o -name pom.xml | xargs sed -i -e s/-SNAPSHOT//
 %patch4
 
 # clean jar files
-find . -name "*.jar" | %{_bindir}/xargs -t rm
+find . -name "*.jar" | xargs -t rm
 
 # failing testcases. TODO see why
 rm src/tests/junit/org/apache/tools/ant/types/selectors/SignedSelectorTest.java \
@@ -611,6 +611,9 @@ cp -pr build/javadocs/* $RPM_BUILD_ROOT%{_javadocdir}/%{name}
 # -----------------------------------------------------------------------------
 
 %changelog
+* Thu Feb 23 2017 Mikolaj Izdebski <mizdebsk@redhat.com> - 0:1.10.1-3
+- Don't hardcode path to xargs
+
 * Thu Feb 16 2017 Mikolaj Izdebski <mizdebsk@redhat.com> - 0:1.10.1-2
 - Conditionalize weak dependencies