numa: remove superfluous '\n' around error_setg

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

numa.c

@@ -66,7 +66,7 @@ static void numa_node_parse(NumaNodeOptions *node, QemuOpts *opts, Error **errp)
 
     if (nodenr >= MAX_NODES) {
         error_setg(errp, "Max number of NUMA nodes reached: %"
-                   PRIu16 "\n", nodenr);
+                   PRIu16 "", nodenr);
         return;
     }
 
@@ -85,7 +85,7 @@ static void numa_node_parse(NumaNodeOptions *node, QemuOpts *opts, Error **errp)
     }
 
     if (node->has_mem && node->has_memdev) {
-        error_setg(errp, "qemu: cannot specify both mem= and memdev=\n");
+        error_setg(errp, "qemu: cannot specify both mem= and memdev=");
         return;
     }
 
@@ -94,7 +94,7 @@ static void numa_node_parse(NumaNodeOptions *node, QemuOpts *opts, Error **errp)
     }
     if (node->has_memdev != have_memdevs) {
         error_setg(errp, "qemu: memdev option must be specified for either "
-                   "all or no nodes\n");
+                   "all or no nodes");
         return;
     }