[LyX/master] Use the safer addName helper function to add the configure lock name to user support directory path name

[Stephan Witt]

commit 9f972ba90cad282cc036cee0e0dd2028b7b94dde
Author: Stephan Witt <sw...@lyx.org>
Date:   Tue Jul 21 01:05:04 2015 +0200

    Use the safer addName helper function to add the configure lock name to 
user support directory path name

diff --git a/src/support/Package.cpp b/src/support/Package.cpp
index b15879c..dda5114 100644
--- a/src/support/Package.cpp
+++ b/src/support/Package.cpp
@@ -177,7 +177,7 @@ int Package::reconfigureUserLyXDir(string const & option) 
const
 
 string Package::getConfigureLockName() const
 {
-       return user_support().absFileName() + ".lyx_configure_lock";
+       return addName(user_support().absFileName(), ".lyx_configure_lock");
 }