Avoid use of rescue

Author: root

Diff for: config/routes.rb

@@ -41,7 +41,7 @@
 
 # Enable SmartHTTP Grack support
 mount Grack::Bundle.new({}),
-      at: (RedmineGitHosting::Config.http_server_subdir rescue '/'),
+      at: RedmineGitHosting::Config.http_server_subdir,
       constraints: lambda { |request| /[-\/\w\.]+\.git\//.match(request.path_info) },
       via: [:get, :post]
 

Diff for: lib/redmine_git_hosting/config/gitolite_access.rb

@@ -34,7 +34,8 @@ def https_server_domain
 
 
       def http_server_subdir
-        get_setting(:http_server_subdir)
+        subdir = get_setting(:http_server_subdir)
+        subdir.empty? ? '/' : subdir
       end