loplugin:stringadd improve detection

if one side of the expression is a compile-time-constant, we don't need
to worry about side-effects on the other side

Change-Id: Iee71ea51b327ef244bf39f128f921ac325d74e2b
Reviewed-on: https://gerrit.libreoffice.org/81589
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 1 insertions, 2 deletions

diff --git a/comphelper/source/misc/backupfilehelper.cxx b/comphelper/source/misc/backupfilehelper.cxx
index 749b9896cb0b..5421f1510ba4 100644
--- a/comphelper/source/misc/backupfilehelper.cxx
+++ b/comphelper/source/misc/backupfilehelper.cxx
@@ -1702,8 +1702,7 @@ namespace comphelper
             if (mbSafeModeDirExists)
             {
                 // adapt work URL to do all repair op's in the correct directory
-                maUserConfigWorkURL += "/";
-                maUserConfigWorkURL += getSafeModeName();
+                maUserConfigWorkURL += "/" + getSafeModeName();
             }
         }