scripts: indent multiline commands (#8706)

scripts/protocgen.sh

@@ -27,11 +27,11 @@ done
 
 # command to generate docs using protoc-gen-doc
 buf protoc \
--I "proto" \
--I "third_party/proto" \
---doc_out=./docs/core \
---doc_opt=./docs/protodoc-markdown.tmpl,proto-docs.md \
-$(find "$(pwd)/proto" -maxdepth 5 -name '*.proto')
+  -I "proto" \
+  -I "third_party/proto" \
+  --doc_out=./docs/core \
+  --doc_opt=./docs/protodoc-markdown.tmpl,proto-docs.md \
+  $(find "$(pwd)/proto" -maxdepth 5 -name '*.proto')
 go mod tidy
 
 # generate codec/testdata proto code