HPC1107W LOG descriptions differ.

Explanation
 Two SORT steps have defined the same input log
DSNAME but with different UNIT or VOLSER designations. The second
SORT step is marked not executable.

User response
 If the JCL was created by the DBRC GENJCL.CA process,
check the skeletal JCL member and variable settings that were used.
If JCL was produced by a non-IMS process, change the process to properly
generate the correct DFSULOG DD statements into the JCL for each SORT
step.