Try to get qmake to use clang.
Try to get qmake to use clang.

Also, use multiple script commands for readability, and test each
example output separately.

dr-joy/protoc-gen-doc,DengKe1994/protoc-gen-doc,DengKe1994/protoc-gen-doc,estan/protoc-gen-doc,DengKe1994/protoc-gen-doc,estan/protoc-gen-doc,mli/protoc-gen-doc,pseudomuto/protoc-gen-doc,pseudomuto/protoc-gen-doc,mli/protoc-gen-doc,DengKe1994/protoc-gen-doc,estan/protoc-gen-doc,mli/protoc-gen-doc,dr-joy/protoc-gen-doc