fix up commenting

so that the following will work

```bash
sed -i '/[test]/s/^#//g' bitcoin/bitcoin.conf 
sed -i '/testnet=1/s/^#//g' bitcoin/bitcoin.conf 
```

bitcoin/bitcoin.conf

@@ -5,8 +5,8 @@
 
 server=1
 rest=1
-# uncomment this for testnet
-# testnet=1
+#uncomment this for testnet
+#testnet=1
 
 # Low bandwidth/CPU optimizations
 blocksonly=1
@@ -16,7 +16,7 @@ maxmempool=512
 maxuploadtarget=5000
 
 # uncomment test if testnet=1 is activated
-# [test]
+#[test]
 port=8333
 rpcport=8332