message: Extract *.proto files only
diff: @@ -14,6 +14,6 @@ SUFFIX=${REF}
  mkdir -p "$COSMOS_DIR"
  wget -qO "$ZIP_FILE" "https://github.com/cosmos/cosmos-sdk/archive/$REF.zip" \
  -&& unzip "$ZIP_FILE" -d "$COSMOS_DIR" \
  + && unzip "$ZIP_FILE" "*.proto" -d "$COSMOS_DIR" \
  && mv "$COSMOS_SDK_DIR-$SUFFIX" "$COSMOS_SDK_DIR" \
  && rm "$ZIP_FILE"
  