someday I will learn bash syntax

.github/workflows/cli-build-instructions.yml

@@ -289,7 +289,7 @@ jobs:
           sed 's/^\([^;]*;[^;]*\);.*$/\1/' unicodetools/mine/src/unicodetools/data/ucd/dev/UnicodeData.txt > merged-repertoire.txt
           sed 's/^\([^;]*;[^;]*\);.*$/\1/' base/unicodetools/data/ucd/dev/UnicodeData.txt > base-repertoire.txt
           diff base-repertoire.txt merged-repertoire.txt
-          REPERTOIRE_CHANGED = $?
+          echo "REPERTOIRE_CHANGED=$?" >> "$GITHUB_ENV"
       - name: Get the CLDR_REF from pom.xml
         id: cldr_ref
         run: echo "CLDR_REF="$(mvn --file unicodetools/mine/src/pom.xml help:evaluate -Dexpression=cldr.version -q -DforceStdout | cut -d- -f3) >> $GITHUB_OUTPUT && cat ${GITHUB_OUTPUT}
@@ -407,8 +407,8 @@ jobs:
         run: |
           cd unicodetools/mine/src
           if $REPERTOIRE_CHANGED
-          then $ERROR = "::error"
-          else $ERROR = "::notice"
+          then ERROR="::error"
+          else ERROR="::notice"
           fi
           MAVEN_OPTS="-ea" mvn -s .github/workflows/mvn-settings.xml test -am -pl unicodetools -Dtest=TestTestUnicodeInvariants#testSecurityInvariants -DCLDR_DIR=$(cd ../../../cldr/mine/src ; pwd)  -DUNICODETOOLS_GEN_DIR=$(cd ../Generated ; pwd)  -DUNICODETOOLS_REPO_DIR=$(pwd)  -DUVERSION=$CURRENT_UVERSION -DfailIfNoTests=false -DEMIT_GITHUB_ERRORS | sed "s/^::error/$ERROR/"
           if $REPERTOIRE_CHANGED