Fix typo.

tbsetup/libvtop_stable.pm.in

@@ -1349,7 +1349,7 @@ sub LoadVirtNodes($)
 	    my $osinfo;
 	    
 	    if ($parent_osname =~ /^(.*)\/(.*)$/) {
-		$osinfo = OSinfo->Lookup($paernt_osname);
+		$osinfo = OSinfo->Lookup($parent_osname);
 	    }
 	    else {
 		$osinfo = OSinfo->LookupByName($pid, $parent_osname);