Use correct comparision op in release script

Author: oschwald

dev-bin/release.sh

@@ -22,7 +22,7 @@ date="${BASH_REMATCH[2]}"
 notes="$(echo "${BASH_REMATCH[3]}" | sed -n -e '/^[0-9]\+\.[0-9]\+\.[0-9]\+/,$!p')"
 
 
-if [[ "$date" -ne  $(date +"%Y-%m-%d") ]]; then
+if [[ "$date" !=  "$(date +"%Y-%m-%d")" ]]; then
     echo "$date is not today!"
     exit 1
 fi