File no_build_time.patch of Package sunflow

--- build.xml.orig	2011-12-29 21:09:33.000000000 +0200
+++ build.xml	2013-07-06 14:57:01.450615929 +0300
@@ -82,6 +82,7 @@
 	<target name="javadoc" depends="init" description="Generate documentation">
 		<mkdir dir="${release.javadoc.dir}" />
 		<javadoc classpath="${sunflow.libs}" destdir="${release.javadoc.dir}" access="protected" use="true" notree="false" nonavbar="false" noindex="false" splitindex="true" author="true" version="true" nodeprecatedlist="false" nodeprecated="false" sourcepath="${src.dir}" doctitle="Sunflow v${sunflow.version}">
+		<arg value="-notimestamp" />
 			<packageset dir="${src.dir}" defaultexcludes="yes">
 				<include name="**" />
 			</packageset>