Fixed example redis session config, Fixes #2157

conf/defaults.ini

@@ -72,7 +72,7 @@ provider = file
 # Provider config options
 # memory: not have any config yet
 # file: session dir path, is relative to grafana data_path
-# redis: config like redis server addr, poolSize, password, e.g. `127.0.0.1:6379,100,grafana`
+# redis: config like redis server e.g. `addr=127.0.0.1:6379,pool_size=100,db=grafana`
 # postgres: user=a password=b host=localhost port=5432 dbname=c sslmode=disable
 # mysql: go-sql-driver/mysql dsn config string, e.g. `user:password@tcp(127.0.0.1)/database_name`
 

conf/sample.ini

@@ -72,7 +72,7 @@
 # Provider config options
 # memory: not have any config yet
 # file: session dir path, is relative to grafana data_path
-# redis: config like redis server addr, poolSize, password, e.g. `127.0.0.1:6379,100,grafana`
+# redis: config like redis server e.g. `addr=127.0.0.1:6379,pool_size=100,db=grafana`
 # mysql: go-sql-driver/mysql dsn config string, e.g. `user:password@tcp(127.0.0.1)/database_name`
 # postgres: user=a password=b host=localhost port=5432 dbname=c sslmode=disable
 ;provider_config = sessions