merge(3p/git): Merge git subtree at v2.29.2 r/1890

This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb

1 files changed, 16 insertions, 16 deletions

diff --git a/third_party/git/Documentation/howto/revert-branch-rebase.txt b/third_party/git/Documentation/howto/revert-branch-rebase.txt
index 149508e13bda..a3e5595a569a 100644
--- a/third_party/git/Documentation/howto/revert-branch-rebase.txt
+++ b/third_party/git/Documentation/howto/revert-branch-rebase.txt
@@ -15,7 +15,7 @@ One of the changes I pulled into the 'master' branch turns out to
 break building Git with GCC 2.95.  While they were well-intentioned
 portability fixes, keeping things working with gcc-2.95 was also
 important.  Here is what I did to revert the change in the 'master'
-branch and to adjust the 'pu' branch, using core Git tools and
+branch and to adjust the 'seen' branch, using core Git tools and
 barebone Porcelain.
 
 First, prepare a throw-away branch in case I screw things up.
@@ -104,11 +104,11 @@ $ git diff master..revert-c99
 
 says nothing.
 
-Then we rebase the 'pu' branch as usual.
+Then we rebase the 'seen' branch as usual.
 
 ------------------------------------------------
-$ git checkout pu
-$ git tag pu-anchor pu
+$ git checkout seen
+$ git tag seen-anchor seen
 $ git rebase master
 * Applying: Redo "revert" using three-way merge machinery.
 First trying simple merge strategy to cherry-pick.
@@ -127,11 +127,11 @@ First trying simple merge strategy to cherry-pick.
 First trying simple merge strategy to cherry-pick.
 ------------------------------------------------
 
-The temporary tag 'pu-anchor' is me just being careful, in case 'git
+The temporary tag 'seen-anchor' is me just being careful, in case 'git
 rebase' screws up.  After this, I can do these for sanity check:
 
 ------------------------------------------------
-$ git diff pu-anchor..pu ;# make sure we got the master fix.
+$ git diff seen-anchor..seen ;# make sure we got the master fix.
 $ make CC=gcc-2.95 clean test ;# make sure it fixed the breakage.
 $ make clean test ;# make sure it did not cause other breakage.
 ------------------------------------------------
@@ -140,7 +140,7 @@ Everything is in the good order.  I do not need the temporary branch
 or tag anymore, so remove them:
 
 ------------------------------------------------
-$ rm -f .git/refs/tags/pu-anchor
+$ rm -f .git/refs/tags/seen-anchor
 $ git branch -d revert-c99
 ------------------------------------------------
 
@@ -168,18 +168,18 @@ Committed merge 7fb9b7262a1d1e0a47bbfdcbbcf50ce0635d3f8f
 And the final repository status looks like this:
 
 ------------------------------------------------
-$ git show-branch --more=1 master pu rc
+$ git show-branch --more=1 master seen rc
 ! [master] Revert "Replace zero-length array decls with []."
- ! [pu] git-repack: Add option to repack all objects.
+ ! [seen] git-repack: Add option to repack all objects.
   * [rc] Merge refs/heads/master from .
 ---
- +  [pu] git-repack: Add option to repack all objects.
- +  [pu~1] More documentation updates.
- +  [pu~2] Show commits in topo order and name all commits.
- +  [pu~3] mailinfo and applymbox updates
- +  [pu~4] Document "git cherry-pick" and "git revert"
- +  [pu~5] Remove git-apply-patch-script.
- +  [pu~6] Redo "revert" using three-way merge machinery.
+ +  [seen] git-repack: Add option to repack all objects.
+ +  [seen~1] More documentation updates.
+ +  [seen~2] Show commits in topo order and name all commits.
+ +  [seen~3] mailinfo and applymbox updates
+ +  [seen~4] Document "git cherry-pick" and "git revert"
+ +  [seen~5] Remove git-apply-patch-script.
+ +  [seen~6] Redo "revert" using three-way merge machinery.
   - [rc] Merge refs/heads/master from .
 ++* [master] Revert "Replace zero-length array decls with []."
   - [rc~1] Merge refs/heads/master from .