Documentation fix for if/unless attributes.  PR 55359.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1510618 13f79535-47bb-0310-9956-ffa450edef68
merge TAR long link handling fix by Emmanuel Bourg

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1512171 13f79535-47bb-0310-9956-ffa450edef68
merge small improvements from commons compress

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1512401 13f79535-47bb-0310-9956-ffa450edef68
System.err debugging of a problem in Gump

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1514675 13f79535-47bb-0310-9956-ffa450edef68
System.err debugging of a problem in Gump

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1514677 13f79535-47bb-0310-9956-ffa450edef68
remove debug output

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1514951 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'upstream/trunk' into EnumAttr