# RELEASE_TAG=Beryllium-SR1 # Example
# RELEASE_BRANCH=stable/beryllium # Example
+# Set release tag as $STREAM, when no release tag is passed
+RELEASE_TAG="${RELEASE_TAG:-${STREAM^}}"
+# Ensure that the first letter of RELEASE_TAG is uppercase.
+RELEASE_TAG="${RELEASE_TAG^}"
+
# Directory to put git format-patches
PATCH_DIR="$WORKSPACE/patches"