Update documentation.

README.md

@@ -29,11 +29,13 @@ git clone https://xgitlab.cels.anl.gov/sds/sds-repo.git
 # Add to spack.
 spack repo add sds-repo
 # Install via spack.
-spack install sdskeyval
+spack install --dirty sdskeyval+leveldb
+spack install --dirty ssg+mpi
+spack install --dirty ch-placement
 # Refresh spack environment.
 source spack/share/spack/setup-env.sh
-# Load sdskeyval modules.
-source <(spack module loads --dependencies sdskeyval)
+# Load required modules.
+source <(spack module loads --dependencies sdskeyval ssg ch-placement)
 ```
 
 ### Get and build sdsdkv.

tests/trivial.cc

@@ -99,7 +99,7 @@ main(int argc, char **argv)
     if (!db_prefix) db_prefix = (char *)"/tmp";
     std::string db_name = std::string(db_prefix) + "/TEST-DB";
 
-    auto personality = (
+    sdsdkv_config_personality personality = (
         (rank % 2 == 0) ? SDSDKV_PERSONALITY_SERVER : SDSDKV_PERSONALITY_CLIENT
     );
 
@@ -131,7 +131,8 @@ main(int argc, char **argv)
     //
     erc = sdsdkv_open(dkvc);
     if (erc != SDSDKV_SUCCESS) ABORT(rank, erc);
-
+    // Server instances wait here until shut down by a client during
+    // sdsdkv_destroy.
     if (personality == SDSDKV_PERSONALITY_CLIENT) {
         do_puts(dkvc, rank);
         MPI_Barrier(pcomm);