Add a configuration variable to control git arguments (fix #193)

config.example.toml

@@ -13,6 +13,9 @@
 # Arguments to pass SSH when upgrading remote systems
 #ssh_arguments = "-o ConnectTimeout=2"
 
+# Arguments to pass Git when pulling Repositories
+#git_arguments = "--rebase --autostash"
+
 # Commands to run before anything
 #[pre_commands]
 #"Emacs Snapshot" = "rm -rf ~/.emacs.d/elpa.bak && cp -rl ~/.emacs.d/elpa ~/.emacs.d/elpa.bak"