fix: build.sh and Dockerfile parallelism

Dockerfile

@@ -15,7 +15,7 @@ ENV REVNUM=$REVNUM
 ARG PYTHON_VERSION=39
 ARG TRIM=cspp
 ENV PORTABLESHELLB3=true
-ENV MAKEFLAGS=-j40
+ENV MAKEFLAGS=-j0
 RUN ./shallbethree.sh mk_gcc11
 ARG LINUXCPUFLAGS="-march=x86-64 -fPIC"
 ENV LINUXCPUFLAGS="${LINUXCPUFLAGS}"

build.sh

-#sh!/bin/bash -ex 
-git diff $tag
+#!/bin/bash -ex 
 # git rev-parse --short ${TAG}
-export REVNUM=$( git rev-parse --verify HEAD --short )
-echo building rGIT${REVNUM}
-sleep 1
-docker build --build-arg REVNUM=GIT$( git rev-parse --verify HEAD --short ) \
+export REVNUM="$( git rev-parse --verify HEAD --short )"
+echo "building rGIT${REVNUM}"
+sleep 2
+docker build --build-arg REVNUM="GIT${REVNUM}" \
   -f Dockerfile \
   -t shellb3-cspp-py3:latest \
   -t gitlab.ssec.wisc.edu:5555/cspp/buildbucket/shellb3/shellb3-centos7-gcc11-cspp-py3:rGIT${REVNUM} \
-  -t gitlab.ssec.wisc.edu:5555/cspp/buildbucket/shellb3/shellb3-centos7-gcc11-cspp-py3:latest 
+  -t gitlab.ssec.wisc.edu:5555/cspp/buildbucket/shellb3/shellb3-centos7-gcc11-cspp-py3:latest |
+    tee docker-build.log 2>&1
 
 DOCK=${DOCK:-$HOME/dock}
 test -d "$DOCK" || mkdir -p "$DOCK"