Feature request: Tumblr social link
===================================
It would be nice if Tumblr is supported as a social link. I would have submitted a PR, but your icon font needs to be updated, so I can't.
The SVG logo of Tumblr can be found in encharm/Font-Awesome-SVG-PNG:

or

**Update.** I installed the wrong CLT. Never mind.
---
> Do you have any thoughts/feelings about this behaviour remaining unchanged?
Is it remaining unchanged though? I just upgraded to Xcode beta 3 and corresponding CLT, and
```
$ /usr/bin/xcodebuild -version
Xcode 9.0
Build version 9M174d
$ /usr/bin/clang -Xlinker -v
@(#)PROGRAM:ld PROJECT:ld64-302.1
configured to support archs: armv6 armv7 armv7s arm64 i386 x86_64 x86_64h armv6m armv7k armv7m armv7em (tvOS)
Library search paths:
/usr/lib
/usr/local/lib
Framework search paths:
/Library/Frameworks/
/System/Library/Frameworks/
...
```
Prior to the upgrade I was seeing the same as https://github.com/Homebrew/homebrew-core/issues/14418#issuecomment-307970648.