[patch] Minor spelling patch in Service.pm

[Fred Moyer]

Very minor, came across it while spelunking.

Index: lib/Perlbal/Service.pm
===================================================================
--- lib/Perlbal/Service.pm      (revision 770)
+++ lib/Perlbal/Service.pm      (working copy)
@@ -27,7 +27,7 @@
              # end-user tunables
              'listen',             # scalar IP:port of where we're 
listening for new connections
              'docroot',            # document root for webserver role
-            'dirindexing',        # bool: direcotry indexing?  (for 
webserver role)  not async.
+            'dirindexing',        # bool: directory indexing?  (for 
webserver role)  not async.
              'index_files',        # arrayref of filenames to try for 
index files
              'enable_concatenate_get',   # bool:  if user can request 
concatenated files
              'enable_put', # bool: whether PUT is supported