support setting the author of a commit

update copy

test/integration/setAuthor/expected/repo/.git_keep/COMMIT_EDITMSG

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+myfile3

test/integration/setAuthor/expected/repo/.git_keep/HEAD

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+ref: refs/heads/master

test/integration/setAuthor/expected/repo/.git_keep/config

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+[core]
+	repositoryformatversion = 0
+	filemode = true
+	bare = false
+	logallrefupdates = true
+	ignorecase = true
+	precomposeunicode = true
+[user]
+	email = Author2@example.com
+	name = Author2

test/integration/setAuthor/expected/repo/.git_keep/description

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+Unnamed repository; edit this file 'description' to name the repository.

test/integration/setAuthor/expected/repo/.git_keep/info/exclude

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+# git ls-files --others --exclude-from=.git/info/exclude
+# Lines that start with '#' are comments.
+# For a project mostly in C, the following would be a good set of
+# exclude patterns (uncomment them if you want to use them):
+# *.[oa]
+# *~
+.DS_Store

test/integration/setAuthor/expected/repo/.git_keep/logs/HEAD

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+0000000000000000000000000000000000000000 2075aeb39a2a66a9607860a65b2a71c517760254 Author1 <Author1@example.com> 1652008089 +1000	commit (initial): myfile1
+2075aeb39a2a66a9607860a65b2a71c517760254 d01c8bb001458d0a7c01193813685c658e0355ac Author1 <Author1@example.com> 1652008089 +1000	commit: myfile2
+d01c8bb001458d0a7c01193813685c658e0355ac 8710ece70b7db9638b9645e93abdbcf210fa4595 Author2 <Author2@example.com> 1652008089 +1000	commit: myfile3
+8710ece70b7db9638b9645e93abdbcf210fa4595 baf3189129ba8878ba9b4107eaaaf3389287259b Author2 <Author2@example.com> 1652008097 +1000	commit (amend): myfile3

test/integration/setAuthor/expected/repo/.git_keep/logs/refs/heads/master

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+0000000000000000000000000000000000000000 2075aeb39a2a66a9607860a65b2a71c517760254 Author1 <Author1@example.com> 1652008089 +1000	commit (initial): myfile1
+2075aeb39a2a66a9607860a65b2a71c517760254 d01c8bb001458d0a7c01193813685c658e0355ac Author1 <Author1@example.com> 1652008089 +1000	commit: myfile2
+d01c8bb001458d0a7c01193813685c658e0355ac 8710ece70b7db9638b9645e93abdbcf210fa4595 Author2 <Author2@example.com> 1652008089 +1000	commit: myfile3
+8710ece70b7db9638b9645e93abdbcf210fa4595 baf3189129ba8878ba9b4107eaaaf3389287259b Author2 <Author2@example.com> 1652008097 +1000	commit (amend): myfile3

test/integration/setAuthor/expected/repo/.git_keep/objects/20/75aeb39a2a66a9607860a65b2a71c517760254

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+x
•<>Q
+Â0DýÎ)ö_<C3B6>ݸÝn¡ˆ%M6Xhˆ”z{ƒx
¿fx0ob-em@"‡¶›
šÄŒA–q2MÌF*IÉÊ#/|NÂ9ÄÁ»ðl÷ºÃíó¯\íÊc³S¬åÒµƒGTÔ	Ž„ˆ®Ó~×ìï¡+ï¼nFîÈ‹5'

test/integration/setAuthor/expected/repo/.git_keep/refs/heads/master

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+baf3189129ba8878ba9b4107eaaaf3389287259b

test/integration/setAuthor/expected/repo/myfile1

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+test1

test/integration/setAuthor/expected/repo/myfile2

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+test2

test/integration/setAuthor/expected/repo/myfile3

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+test3

test/integration/setAuthor/recording.json

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+{"KeyEvents":[{"Timestamp":1118,"Mod":0,"Key":259,"Ch":0},{"Timestamp":1382,"Mod":0,"Key":259,"Ch":0},{"Timestamp":2654,"Mod":0,"Key":256,"Ch":97},{"Timestamp":3632,"Mod":0,"Key":258,"Ch":0},{"Timestamp":4070,"Mod":0,"Key":13,"Ch":13},{"Timestamp":6702,"Mod":0,"Key":9,"Ch":9},{"Timestamp":7486,"Mod":0,"Key":258,"Ch":0},{"Timestamp":7899,"Mod":0,"Key":13,"Ch":13},{"Timestamp":9141,"Mod":0,"Key":256,"Ch":113}],"ResizeEvents":[{"Timestamp":0,"Width":272,"Height":74}]}

test/integration/setAuthor/setup.sh

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+#!/bin/sh
+
+set -e
+
+cd $1
+
+git init
+
+git config user.email "Author1@example.com"
+git config user.name "Author1"
+
+echo test1 > myfile1
+git add .
+git commit -am "myfile1"
+echo test2 > myfile2
+git add .
+git commit -am "myfile2"
+
+git config user.email "Author2@example.com"
+git config user.name "Author2"
+
+echo test3 > myfile3
+git add .
+git commit -am "myfile3"

test/integration/setAuthor/test.json

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+{
+  "description": "In this test the author of a commit is set to a different name/email.",
+  "speed": 5
+}