pull up r25395 from trunk

 ------------------------------------------------------------------------
 r25395 | tlyu | 2011-10-21 13:35:49 -0400 (Fri, 21 Oct 2011) | 10 lines

 ticket: 6989
 subject: fix tar invocation in mkrel
 target_version: 1.10
 tags: pullup

 Fix the tar invocation in mkrel so that it defaults to using "tar" as
 the tar program rather than "gtar".

 This should probably be pulled up to at least 1.9 and 1.8 as well.

https://github.com/krb5/krb5/commit/2a7bf4ce9cfbdc6f8c4c0ca9153028f2b665ac90
Commit By: tlyu
Revision: 25396
Changed Files:
U   branches/krb5-1-9/src/util/mkrel