merge(third_party/git): Merge squashed git subtree at v2.23.0

Merge commit '1b593e1ea4' as 'third_party/git'
2020-01-11 23:36:56 +00:00 · 2020-01-11 23:36:56 +00:00 · 7ef0d62730
commit 7ef0d62730
parent 6a2a300707 1b593e1ea4
3629 changed files with 1139935 additions and 0 deletions
--- a/third_party/git/t/t5100/patch0003
+++ b/third_party/git/t/t5100/patch0003
@ -0,0 +1,14 @@
+---
+ foo | 2 +-
+ 1 files changed, 1 insertions(+), 1 deletions(-)
+
+diff --git a/foo b/foo
+index 9123cdc..918dcf8 100644
+--- a/foo
+++ b/foo
+@@ -1 +1 @@
+-Fri Jun  9 00:44:04 PDT 2006
+Fri Jun  9 00:44:13 PDT 2006
+-- 
+1.4.0.g6f2b
+