Port "git clone" fixes to release 2.0.0 (#13467)

* Port "git clone" fixes to release 2.0.0

It migrates "git clone" from unstable github to VSO. The ported commits
are:
1.
66d0fed
2.
3ab8def

* Fix indentation

Fix indentation

Author: smile21prc

buildpipeline/DotNet-CoreClr-Trusted-Linux-Crossbuild.json

@@ -49,7 +49,7 @@
       },
       "inputs": {
         "filename": "docker",
-        "arguments": "run --rm $(DockerCommonRunArgs) git clone $(GitHubRepo) $(GitHubDirectory)",
+        "arguments": "run --rm $(DockerCommonRunArgs) git clone $(VsoCoreClrGitUrl) $(GitHubDirectory)",
         "workingFolder": "",
         "failOnStandardError": "false"
       }
@@ -426,6 +426,20 @@
     },
     "PB_CleanAgent": {
       "value": "true"
+    },
+    "VsoAccountName": {
+      "value": "dn-bot"
+    },
+    "VsoCoreClrGitUrl": {
+      "value": "https://$(VsoAccountName):$(VsoPassword)@devdiv.visualstudio.com/DevDiv/_git/$(VsoRepositoryName)/"
+    },
+    "VsoPassword": {
+      "value": null,
+      "isSecret": true
+    },
+    "VsoRepositoryName": {
+      "value": "DotNet-CoreCLR-Trusted",
+      "allowOverride": true
     }
   },
   "demands": [

buildpipeline/DotNet-CoreClr-Trusted-Linux.json

@@ -49,7 +49,7 @@
       },
       "inputs": {
         "filename": "docker",
-        "arguments": "run --rm $(DockerCommonRunArgs) git clone $(GitHubRepo) $(GitHubDirectory)",
+        "arguments": "run --rm $(DockerCommonRunArgs) git clone $(VsoCoreClrGitUrl) $(GitHubDirectory)",
         "workingFolder": "",
         "failOnStandardError": "false"
       }
@@ -390,6 +390,20 @@
     },
     "PB_AdditionalBuildArgs": {
       "value":""
+    },
+    "VsoAccountName": {
+      "value": "dn-bot"
+    },
+    "VsoCoreClrGitUrl": {
+      "value": "https://$(VsoAccountName):$(VsoPassword)@devdiv.visualstudio.com/DevDiv/_git/$(VsoRepositoryName)/"
+    },
+    "VsoPassword": {
+      "value": null,
+      "isSecret": true
+    },
+    "VsoRepositoryName": {
+      "value": "DotNet-CoreCLR-Trusted",
+      "allowOverride": true
     }
   },
   "demands": [