E3-1350: Fix wrapper CI

Due to the patch fix (see
e3/wrappers/e3-require@a94a06b1),
we need to be more specific about the variables that we fetch from
`make vars`. In a sense, we were lucky until this point that no
other variables showed up with suffixes or prefixes.

E3ModuleBuild.gitlab-ci.yml

@@ -48,11 +48,11 @@ check-submodule:
   script:
     - |
        set +e  # This is to avoid the grep exit code for local modules
-       submodule_var=$(make vars | grep "EPICS_MODULE_TAG")
+       submodule_var=$(make vars | grep "^EPICS_MODULE_TAG\b")
        if [ -n "$submodule_var" ]; then
           git submodule update --init
-          submodule_name=$(make vars | grep "E3_MODULE_SRC_PATH" | awk -F' ' '{print $3}')
-          submodule_tag=$(make vars | grep "EPICS_MODULE_TAG" | awk -F' ' '{print $3}')
+          submodule_name=$(make vars | grep "^E3_MODULE_SRC_PATH\b" | awk -F' ' '{print $3}')
+          submodule_tag=$(make vars | grep "^EPICS_MODULE_TAG\b" | awk -F' ' '{print $3}')
           if [ -n "$submodule_name" ]; then
              cd "$submodule_name"
              now_version=$(git rev-parse --short HEAD)