Revert authentication plugin version, otherwise we break

  authentication of communications to older versions of
  slurmdbd

doc/html/authplugins.shtml

@@ -5,7 +5,7 @@
 <h2> Overview</h2>
 <p> This document describes SLURM authentication plugins and the API that defines 
 them. It is intended as a resource to programmers wishing to write their own SLURM 
-authentication plugins. This is version 100 of the API.</p>
+authentication plugins. This is version 90 of the API.</p>
 <p>SLURM authentication plugins are SLURM plugins that implement the SLURM authentication 
 API described herein. They must conform to the SLURM Plugin API with the following 
 specifications:</p>

src/common/slurm_auth.c

@@ -264,7 +264,8 @@ slurm_auth_generic_errstr( int slurm_errno )
                 { SLURM_AUTH_MEMORY, "memory management error" },
                 { SLURM_AUTH_NOUSER, "no such user" },
                 { SLURM_AUTH_INVALID, "authentication credential invalid" },
-                { SLURM_AUTH_MISMATCH, "authentication type mismatch" },
+                { SLURM_AUTH_MISMATCH, 
+		  "authentication type or verstion mismatch" },
                 { 0, NULL }
         };
 

src/plugins/auth/authd/auth_authd.c

@@ -65,7 +65,7 @@
 
 const char plugin_name[]	= "Brent Chun's authd authentication plugin";
 const char plugin_type[]	= "auth/authd";
-const uint32_t plugin_version = 100;
+const uint32_t plugin_version = 90;
 
 /*
  * Where to find the timeout in the argument vector.  This is set

src/plugins/auth/munge/auth_munge.c

@@ -76,7 +76,7 @@
 
 const char plugin_name[]       	= "auth plugin for Munge (http://home.gna.org/munge/)";
 const char plugin_type[]       	= "auth/munge";
-const uint32_t plugin_version	= 100;
+const uint32_t plugin_version	= 10;
 
 static int plugin_errno = SLURM_SUCCESS;
 

src/plugins/auth/none/auth_none.c

@@ -96,7 +96,7 @@
  */
 const char plugin_name[]       	= "Null authentication plugin";
 const char plugin_type[]       	= "auth/none";
-const uint32_t plugin_version	= 100;
+const uint32_t plugin_version	= 90;
 
 
 /*

src/slurmdbd/proc_req.c

@@ -1533,7 +1533,7 @@ static int _init_conn(slurmdbd_conn_t *slurmdbd_conn,
 	int rc = SLURM_SUCCESS;
 
 	if ((rc = slurmdbd_unpack_init_msg(slurmdbd_conn->rpc_version, 
-				     &init_msg, in_buffer, 
+					   &init_msg, in_buffer, 
 					   slurmdbd_conf->auth_info))
 	    != SLURM_SUCCESS) {
 		comment = "Failed to unpack DBD_INIT message";