set keyword on doc

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1295 44740490-163a-0410-bde0-09ae8108e29a

modules/statistics/docs/statistics.txt

@@ -55,15 +55,15 @@ Then take the configuration template:
 
 Configure the path of the log file:
 
-       'inputfile' => '/tmp/stat',
+	'inputfile' => '/tmp/stat',
 
 and the syntax of the log file. You need to configure where the
 date starts (usually 0), and how long the date is (usually 15), and
 where the first columns starts (such that STAT is in column 3):
 
-       'datestart' => 1,
-        'datelength' => 15,
-        'offsetspan' => 21,
+	'datestart' => 1,
+	'datelength' => 15,
+	'offsetspan' => 21,
 
 Make sure the stat dir is writable. SimpleSAMLphp will write data
 here: