cppcheck stuff (#1200)

* cppcheck stuff

* Update src/ui/RoomSettings.cpp

Co-authored-by: DeepBlueV7.X <nicolas.werner@hotmail.de>

* Update src/ui/RoomSettings.cpp

Co-authored-by: DeepBlueV7.X <nicolas.werner@hotmail.de>

* Fix linting

Co-authored-by: DeepBlueV7.X <nicolas.werner@hotmail.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/CompletionProxyModel.h b/src/CompletionProxyModel.h

index e4a1b9cd..0a6d6c47 100644
--- a/src/CompletionProxyModel.h
+++ b/src/CompletionProxyModel.h
@@ -182,7 +182,7 @@ public:
 public slots:
     QVariant completionAt(int i) const;
 
-    void setSearchString(QString s);
+    void setSearchString(const QString &s);
     QString searchString() const { return searchString_; }
 
 signals: