Update https://github.com/gohugoio/hugo in repo_dependencies.yml from v0.37 to v0.38

[dependencies]

Dependencies.io has updated https://github.com/gohugoio/hugo (a git dependency in repo_dependencies.yml) from "v0.37" to "v0.38".

v0.38

Hugo 0.38 is an Easter egg filled with good stuff. We now support fetching date and slug from the content filename, making the move from Jekyll even easier. And you can now set contentDir per language with intelligent merging, and themes can now provide configuration ... Also worth mentioning is several improvements in the Chroma highlighter, most notable support for Go templates.

This release represents 39 contributions by 4 contributors to the main Hugo code base.
bep leads the Hugo development with a significant amount of contributions, but also a big shoutout to anthonyfok, felicianotech, and paulcmal for their ongoing contributions.

And a big thanks to digitalcraftsman for his relentless work on keeping the themes site in pristine condition and to kaushalmodi for his great work on the documentation site.

Also, a shoutout to regisphilibert for his work on the new Code Toggle Shortcode on the Hugo docs site, which we will put to good use to improve all the configuration samples.

Many have also been busy writing and fixing the documentation in hugoDocs,
which has received 55 contributions by 18 contributors. A special thanks to kaushalmodi, bep, xa0082249956, and paulcmal for their work on the documentation site.

Hugo now has:

• 24547+ stars
• 447+ contributors
• 213+ themes

Notes

• Hugo now allows partial redefinition outputs in your site configuration. This is what most people would expect, but it is still a change in behaviour. For details, see #4487
• Before this release, Hugo flattened URLs of processed images in sub-folders. This worked fine but was not intentional. See #4502.

Enhancements

• Allow themes to define output formats, media types and params e9c7b620 bep #4490
• Allow partial redefinition of the ouputs config f8dc47ee bep #4487
• Add a way to merge pages by language ffaec4ca bep #4463
• Extract date and slug from filename 68bf1511 bep #285#3310#3762#4340
• Add Delete method to delete key from Scratch e46ab29b paulcmal
• Simplify Prev/Next 79dd7cb3 bep
• List Chroma lexers 2c54f1ad bep #4554
• Add support for a contentDir set per language eb42774e bep #4523#4552#4553
• Update Chroma 7a634898 bep #4549
• Add .Site.IsServer 1823c053 felicianotech #4478
• Move to Ubuntu Trusty image 511d5d3b anthonyfok
• Bump some deprecations b6798ee8 bep
• Update Chroma to get Go template support 904a3d9d bep #4515
• Recover from error in server f0052b6d bep #4516
• Spring test cleaning, take 2 da880157 bep
• Add docs for lang.Merge 70005364 bep
• Remove archetype title/date warning ac12d51e bep #4504
• Add docs on the new front matter configuration 0dbf79c2 bep #4495
• Refactor the GitInfo into the date handlers ce6e4310 bep #4495
• Do not print build total when --quiet is set 50a03a5a bep #4456

Fixes

• Fix freeze in invalid front matter error case 93e24a03 bep #4526
• Fix path duplication/flattening in processed images 3fbc7553 bep #4502#4501
• Fix SVG and similar resource handling ba94abbf bep #4455

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