Fix the usage string, example systemd files, and README for breaking flags change.

README.md

@@ -56,8 +56,8 @@ You're ready to run the server:
 
     $ ./bin/redoctober -addr=localhost:8080 \
                        -vaultpath=diskrecord.json \
-                       -cert=cert/server.crt \
-                       -key=cert/server.pem
+                       -certs=cert/server.crt \
+                       -keys=cert/server.pem
 
 ## Quick start: example webapp
 

redoctober.go

@@ -199,12 +199,12 @@ func (this *indexHandler) handle(w http.ResponseWriter, r *http.Request) {
 
 const usage = `Usage:
 
-	redoctober -static <path> -vaultpath <path> -addr <addr> [-cert <path> -key <path> | -multicert <certpaths> -multikey <keypaths>] [-ca <path>]
+	redoctober -static <path> -vaultpath <path> -addr <addr> -certs <path1>[,<path2>,...] -keys <path1>[,<path2>,...] [-ca <path>]
 
-example:
-redoctober -vaultpath diskrecord.json -addr localhost:8080 -cert cert.pem -key cert.key
+single-cert example:
+redoctober -vaultpath diskrecord.json -addr localhost:8080 -certs cert.pem -keys cert.key
 multi-cert example:
-redoctober -vaultpath diskerecord.json -addr localhost:8080 -certs cert1.pem,cert2.pem -keys cert1.key,cert2.key
+redoctober -vaultpath diskrecord.json -addr localhost:8080 -certs cert1.pem,cert2.pem -keys cert1.key,cert2.key
 `
 
 func main() {

redoctober.service

@@ -14,7 +14,7 @@ Group=redoctober
 
 [Service]
 Type=simple
-ExecStart=/usr/local/sbin/redoctober -vaultpath=/etc/redoctober/diskrecord.json -cert=/etc/redoctober/cert/server.crt -key=/etc/redoctober/cert/server.pem -systemdfds
+ExecStart=/usr/local/sbin/redoctober -vaultpath=/etc/redoctober/diskrecord.json -certs=/etc/redoctober/cert/server.crt -keys=/etc/redoctober/cert/server.pem -systemdfds
 User=redoctober
 Group=redoctober
 SyslogIdentifier=redoctober