Enforce cwd for GIT functions

git_try.py

Index: git_try.py
diff --git a/git_try.py b/git_try.py
index a36a19f245434846b8abadc949f72b518ce2869c..45a5217e6f2a5fdd665af049c7f57b867ca98228 100755
--- a/git_try.py
+++ b/git_try.py
@@ -19,7 +19,8 @@ import git_cl
 def GetRietveldIssueNumber():
   try:
     return GIT.Capture(
-        ['config', 'branch.%s.rietveldissue' % GIT.GetBranch(None)]).strip()
+        ['config', 'branch.%s.rietveldissue' % GIT.GetBranch('.')],
+        '.').strip()
   except subprocess2.CalledProcessError:
     return None
 
@@ -27,14 +28,15 @@ def GetRietveldIssueNumber():
 def GetRietveldPatchsetNumber():
   try:
     return GIT.Capture(
-        ['config', 'branch.%s.rietveldpatchset' % GIT.GetBranch(None)]).strip()
+        ['config', 'branch.%s.rietveldpatchset' % GIT.GetBranch('.')],
+        '.').strip()
   except subprocess2.CalledProcessError:
     return None
 
 
 def GetRietveldServerUrl():
   try:
-    return GIT.Capture(['config', 'rietveld.server']).strip()
+    return GIT.Capture(['config', 'rietveld.server'], '.').strip()
   except subprocess2.CalledProcessError:
     return None