Fix my bug that Moe found.

src/slurmd/slurmstepd/req.c

@@ -605,7 +605,7 @@ _handle_attach(int fd, slurmd_job_t *job, uid_t uid)
 	debug("_handle_attach for job %u.%u", job->jobid, job->stepid);
 
 	srun       = xmalloc(sizeof(*srun));
-	srun->key  = (srun_key_t *)xmalloc(sizeof(SLURM_CRED_SIGLEN));
+	srun->key  = (srun_key_t *)xmalloc(SLURM_CRED_SIGLEN);
 
 	debug("sizeof(srun_info_t) = %d, sizeof(slurm_addr) = %d",
 	      sizeof(srun_info_t), sizeof(slurm_addr));