Fix bash example

docs/securing_installation.md

@@ -92,12 +92,12 @@ If these steps are followed, an example `helm init` command might look something
  
 ```bash
 $ helm init \
-–tiller-tls \ 
-–tiller-tls-verify \ 
-–tiller-tls-ca-cert=ca.pem \ 
-–tiller-tls-cert=cert.pem \ 
-–tiller-tls-key=key.pem \ 
-–service-account=accountname  
+--tiller-tls \
+--tiller-tls-verify \
+--tiller-tls-ca-cert=ca.pem \
+--tiller-tls-cert=cert.pem \
+--tiller-tls-key=key.pem \
+--service-account=accountname  
 ```
 
 This command will start Tiller with both strong authentication over gRPC, and a service account to which RBAC policies have been applied.