Added a comment about needing the absolute path in the release name.

AUTOTEST/testdist.sh

@@ -25,7 +25,7 @@ do
 
    $0 [options] {release}
 
-   where: {release}  is a hypre release tar file (gzipped)
+   where: {release}  is a hypre release tar file (gzipped, absolute path)
 
    with options:
       -xterm         run the tests in parallel using multiple xterm windows
@@ -41,6 +41,8 @@ do
 
    Example usage: $0 /usr/casc/hypre/hypre-2.0.0.tar.gz
 
+   NOTE: The absolute path for the release is required.
+
    NOTE: Because of ssh restrictions at LLNL, run this script on an LC machine.
    You may need to change the default tux platform at the top of this file to
    your own tux machine.  Finally, for each release tar file, it is recommended