Spell "qualifier" correctly

Author: mark-vieira

.buildkite/scripts/dra-workflow.sh

@@ -29,8 +29,8 @@ if [[ "$WORKFLOW" == "snapshot" ]]; then
   VERSION_SUFFIX="-SNAPSHOT"
 fi
 
-if [[ -n "${VERSION_QUALIFER:-}" ]]; then
-  ES_VERSION = "${ES_VERSION}-${VERSION_QUALIFER}"
+if [[ -n "${VERSION_QUALIFIER:-}" ]]; then
+  ES_VERSION="${ES_VERSION}-${VERSION_QUALIFIER}"
   echo "Version qualifier specified. ES_VERSION=${ES_VERSION}."
 fi
 
@@ -53,8 +53,8 @@ if [[ "$WORKFLOW" == "staging" ]]; then
   BUILD_SNAPSHOT_ARG="-Dbuild.snapshot=false"
 fi
 
-if [[ -n "${VERSION_QUALIFER:-}" ]]; then
-  VERSION_QUALIFIER_ARG="-Dbuild.version_qualifier=$VERSION_QUALIFER"
+if [[ -n "${VERSION_QUALIFIER:-}" ]]; then
+  VERSION_QUALIFIER_ARG="-Dbuild.version_qualifier=$VERSION_QUALIFIER"
 fi
 
 echo --- Building release artifacts
@@ -72,10 +72,10 @@ echo --- Building release artifacts
   :distribution:generateDependenciesReport
 
 PATH="$PATH:${JAVA_HOME}/bin" # Required by the following script
-if [[ -z "${VERSION_QUALIFER:-}" ]]; then
+if [[ -z "${VERSION_QUALIFIER:-}" ]]; then
 x-pack/plugin/sql/connectors/tableau/package.sh asm qualifier="$VERSION_SUFFIX"
 else
-x-pack/plugin/sql/connectors/tableau/package.sh asm qualifier="$VERSION_QUALIFER"
+x-pack/plugin/sql/connectors/tableau/package.sh asm qualifier="$VERSION_QUALIFIER"
 fi
 
 # we regenerate this file as part of the release manager invocation
@@ -103,7 +103,7 @@ docker run --rm \
   --branch "$RM_BRANCH" \
   --commit "$BUILDKITE_COMMIT" \
   --workflow "$WORKFLOW" \
-  --qualifier "${VERSION_QUALIFER:-}" \
+  --qualifier "${VERSION_QUALIFIER:-}" \
   --version "$ES_VERSION" \
   --artifact-set main \
   --dependency "beats:https://artifacts-${WORKFLOW}.elastic.co/beats/${BEATS_BUILD_ID}/manifest-${ES_VERSION}${VERSION_SUFFIX}.json" \