diff --git a/bin/GitUtility.rb b/bin/GitUtility.rb
index 35576a8..86d4fe5 100644
--- a/bin/GitUtility.rb
+++ b/bin/GitUtility.rb
@@ -31,6 +31,16 @@ def self.get_git_has_uncommitted_changes(path)
     return run_git(path, 'status --porcelain') != nil
   end
 
+  # Git executable for shell invocation: PATH name or quoted path when $git_bin_path is set.
+  def self.git_exe
+    return $git_bin_path.to_s.empty? ? 'git' : "\"#{$git_bin_path}git\""
+  end
+
+  # Shell stderr redirect for discarding git noise: cmd.exe has no /dev/null (use 2>nul); Unix uses 2>/dev/null.
+  def self.git_stderr_null
+    return (RUBY_PLATFORM =~ /mswin|mingw|cygwin/) ? '2>nul' : '2>/dev/null'
+  end
+
   # Runs a git command from the directory of path.
   # Returns trimmed output as string, or nil on empty output / error.
   def self.run_git(path, args)
@@ -38,7 +48,7 @@ def self.run_git(path, args)
     dir = File.directory?(path) ? path : File.dirname(path)
     curr_dir = Dir.pwd
     Dir.chdir(dir)
-    cmd = ($git_bin_path.to_s.empty? ? 'git' : "\"#{$git_bin_path}git\"") + ' ' + args + ' 2>/dev/null'
+    cmd = "#{git_exe} #{args} #{git_stderr_null}"
     socket = IO.popen(cmd)
     begin
       out = socket.gets(nil).to_s.strip
@@ -52,5 +62,5 @@ def self.run_git(path, args)
     return nil
   end
 
-  private_class_method :run_git
+  private_class_method :git_exe, :git_stderr_null, :run_git
 end