Be more informative about proxy server format.

lib/geocoder/cli.rb

@@ -23,7 +23,7 @@ module Geocoder
         end
 
         opts.on("-p <proxy>", "--proxy <proxy>",
-          "HTTP proxy server to use (not including 'http://')") do |proxy|
+          "HTTP proxy server to use (user:pass@host:port)") do |proxy|
           Geocoder::Configuration.http_proxy = proxy
         end
 

lib/geocoder/configuration.rb

@@ -15,10 +15,10 @@ module Geocoder
         # use HTTPS for lookup requests? (if supported)
         [:use_https, false],
 
-        # HTTP proxy server (not including "http://")
+        # HTTP proxy server (user:pass@host:port)
         [:http_proxy, nil],
 
-        # HTTPS proxy server (not including "https://")
+        # HTTPS proxy server (user:pass@host:port)
         [:https_proxy, nil],
 
         # API key for geocoding service