This to to ensure the reader is not stuck with a stale version
of govendor where `govendor get` may not actually build/install
the final hugo binary.
See kardianos/govendor#330
Why:
* first time using hugo I got very little info from --verbose output
but I noticed there is quite a lot of useful DEBUG logging
* asked for in other issues like https://github.com/gohugoio/hugo/issues/3514
This change addreses the need by:
* adding a simple --debug flag which simply turns on debug level in stdout
and logoutput if enabled.
See https://www.netlify.com/blog/2017/07/18/http/2-server-push-on-netlify/
```
▶ nghttp -ans https://deploy-preview-83--gohugoio.netlify.com/
***** Statistics *****
Request timing:
responseEnd: the time when last byte of response was received
relative to connectEnd
requestStart: the time just before first byte of request was sent
relative to connectEnd. If '*' is shown, this was
pushed by server.
process: responseEnd - requestStart
code: HTTP status code
size: number of bytes received as response body without
inflation.
URI: request URI
see http://www.w3.org/TR/resource-timing/#processing-model
sorted by 'complete'
id responseEnd requestStart process code size request path
13 +199.52ms +1.22ms 198.30ms 200 42K /
4 +404.60ms * +69.97ms 334.62ms 200 102K /dist/main.css
2 +484.93ms * +69.63ms 415.30ms 200 131K /dist/app.bundle.js
```
Compare that to the live site:
```
▶ nghttp -ans https://gohugo.io/
***** Statistics *****
Request timing:
responseEnd: the time when last byte of response was received
relative to connectEnd
requestStart: the time just before first byte of request was sent
relative to connectEnd. If '*' is shown, this was
pushed by server.
process: responseEnd - requestStart
code: HTTP status code
size: number of bytes received as response body without
inflation.
URI: request URI
see http://www.w3.org/TR/resource-timing/#processing-model
sorted by 'complete'
id responseEnd requestStart process code size request path
13 +596.97ms +2.54ms 594.43ms 200 42K /
15 +606.87ms +403.50ms 203.37ms 200 15K /files/muli-latin-200.woff2
2`1 +790.39ms +403.51ms 386.88ms 200 20K /dist/main.css
23 +1.14s +596.00ms 544.48ms 200 42K /dist/app.bundle.js
19 +1.14s +403.50ms 737.99ms 200 15K /files/muli-latin-800.woff2
17 +1.14s +403.50ms 738.01ms 200 15K /files/muli-latin-400.woff2
```
