logging: remove spaces from subsystem names.

Spaces just make life a little harder for everyone.

(Plus, fix documentation: it's 'jsonrpc' not 'json' subsystem).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

doc/lightningd-config.5

@@ -143,6 +143,8 @@ for any subsystem containing that string\.  Subsystems include:
 \fIgossipd\fR: The gossip daemon
 .IP \[bu]
 \fIconnectd\fR: The network connection daemon
+.IP \[bu]
+\fIjsonrpc#FD\fR: Each JSONRPC connection, FD = file descriptor number
 
 .RE
 
@@ -158,8 +160,6 @@ internal integer id assigned for the lifetime of the channel:
 \fIclosingd-chan#N\fR: Each closing negotiation daemon
 .IP \[bu]
 \fIonchaind-chan#N\fR: Each onchain close handling daemon
-.IP \[bu]
-\fIjson #FD\fR: Each JSONRPC connection, FD = file descriptor number
 
 .RE
 

doc/lightningd-config.5.md

@@ -117,6 +117,7 @@ for any subsystem containing that string.  Subsystems include:
 * *hsmd*: The secret-holding daemon
 * *gossipd*: The gossip daemon
 * *connectd*: The network connection daemon
+* *jsonrpc#FD*: Each JSONRPC connection, FD = file descriptor number
 
 
   The following subsystems exist for each channel, where N is an incrementing
@@ -125,7 +126,6 @@ internal integer id assigned for the lifetime of the channel:
 * *channeld-chan#N*: Each channel management daemon
 * *closingd-chan#N*: Each closing negotiation daemon
 * *onchaind-chan#N*: Each onchain close handling daemon
-* *json #FD*: Each JSONRPC connection, FD = file descriptor number
 
 
   So, **log-level=debug:plugin** would set debug level logging on all