Allow custom dir.

bin/gollum

@@ -6,7 +6,9 @@ help = <<HELP
 Gollum is a multi-format Wiki Engine/API/Frontend.
 
 Basic Command Line Usage:
-  gollum [options]
+  gollum [OPTIONS] [PATH]
+
+        PATH                         The path to the Gollum repository.
 
 Options:
 HELP
@@ -21,11 +23,11 @@ options = {}
 opts = OptionParser.new do |opts|
   opts.banner = help
 
-  opts.on("--port [PORT]", "Bind port (default port 5432)") do |port|
+  opts.on("--port [PORT]", "Bind port (default port 5432).") do |port|
     options['port'] = port
   end
 
-  opts.on("--version", "Display current version") do
+  opts.on("--version", "Display current version.") do
     puts "Gollum " + Gollum::VERSION
     exit 0
   end
@@ -34,6 +36,6 @@ end
 # Read command line options into `options` hash
 opts.parse!
 
-$path = Dir.pwd
+$path = ARGV[0] || Dir.pwd
 
 Precious::App.run!