drone script fixes

drone/prepare-deliver.sh

@@ -10,9 +10,9 @@ elif [ "$(command -v yum)" ]; then
   yum -y install openssh-client openssh-clients > /dev/null
 elif [ "$(command -v apk)" ]; then
   apk update > /dev/null
-  apk add openssh-client openssh-clients > /dev/null
+  apk add openssh > /dev/null
 else
-  echo "could not find a package manager, anborting" >&2
+  echo "could not find a package manager, aborting" >&2
   exit 1
 fi
 echo "done."
@@ -37,7 +37,7 @@ case "$DRONE_BRANCH" in
   "")
     echo "DRONE_BRANCH is missing" >&2
     exit 1
-    ;;
+  ;;
   *)
     echo "branch $1 is unable to perform delivery, authorized branches are 'dev and production' for delivery." >&2
     echo "delivery step skipped"