In GNU tar 1.19, the pax extended header entry for '.' has the name "./PaxHeader.####/."
$ gtar-1.19 -c --posix -f - . | hd 00000000 2e 2f 50 61 78 48 65 61 |./PaxHea| 00000008 64 65 72 73 2e 38 31 33 |ders.813| 00000010 30 2f 2e 00 00 00 00 00 |0/......| 00000018 00 00 00 00 00 00 00 00 |........| Generally, '.' is a poor name for something that will get extracted as a file by a non-compliant reader. Cheers, Tim Kientzle
