block/nfs: fix QMP to match debug option

The QMP definition of BlockdevOptionsNfs:
{ 'struct': 'BlockdevOptionsNfs',
  'data': { 'server': 'NFSServer',
            'path': 'str',
            '*user': 'int',
            '*group': 'int',
            '*tcp-syn-count': 'int',
            '*readahead-size': 'int',
            '*page-cache-size': 'int',
            '*debug-level': 'int' } }

To make this consistent with other block protocols like gluster, lets
change s/debug-level/debug/
Suggested-by: NEric Blake <eblake@redhat.com>
Signed-off-by: NPrasanna Kumar Kalever <prasanna.kalever@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Signed-off-by: NJeff Cody <jcody@redhat.com>

block/nfs.c

@@ -134,7 +134,7 @@ static int nfs_parse_uri(const char *filename, QDict *options, Error **errp)
             qdict_put(options, "page-cache-size",
                       qstring_from_str(qp->p[i].value));
         } else if (!strcmp(qp->p[i].name, "debug")) {
-            qdict_put(options, "debug-level",
+            qdict_put(options, "debug",
                       qstring_from_str(qp->p[i].value));
         } else {
             error_setg(errp, "Unknown NFS parameter name: %s",
@@ -165,7 +165,7 @@ static bool nfs_has_filename_options_conflict(QDict *options, Error **errp)
             !strcmp(qe->key, "tcp-syn-count") ||
             !strcmp(qe->key, "readahead-size") ||
             !strcmp(qe->key, "page-cache-size") ||
-            !strcmp(qe->key, "debug-level") ||
+            !strcmp(qe->key, "debug") ||
             strstart(qe->key, "server.", NULL))
         {
             error_setg(errp, "Option %s cannot be used with a filename",

qapi/block-core.json

@@ -2292,7 +2292,7 @@
 # @page-cache-size:         #optional set the pagecache size in bytes (defaults
 #                           to libnfs default)
 #
-# @debug-level:             #optional set the NFS debug level (max 2) (defaults
+# @debug:                   #optional set the NFS debug level (max 2) (defaults
 #                           to libnfs default)
 #
 # Since 2.8
@@ -2305,7 +2305,7 @@
             '*tcp-syn-count': 'int',
             '*readahead-size': 'int',
             '*page-cache-size': 'int',
-            '*debug-level': 'int' } }
+            '*debug': 'int' } }
 
 ##
 # @BlockdevOptionsCurl