[LyX/master] Make docstring parameters const references

[Jean-Marc Lasgouttes]

commit 7a99ef7fbbe5760e7d70e8ef6b446aebb0af04e2
Author: Jean-Marc Lasgouttes <lasgouttes at lyx.org>
Date:   Thu Sep 12 18:28:26 2024 +0200

    Make docstring parameters const references
    
    Spotted by Coverity scan.
---
 src/insets/InsetLabel.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/insets/InsetLabel.h b/src/insets/InsetLabel.h
index c2768af417..b4b3cb46f3 100644
--- a/src/insets/InsetLabel.h
+++ b/src/insets/InsetLabel.h
@@ -32,11 +32,11 @@ public:
 	///
 	docstring const & formattedCounter() const { return formatted_counter_; }
 	///
-	void setCounterValue(docstring cv) { counter_value_ = cv; }
+	void setCounterValue(docstring const & cv) { counter_value_ = cv; }
 	///
-	void setPrettyCounter(docstring pc) { pretty_counter_ = pc; }
+	void setPrettyCounter(docstring const & pc) { pretty_counter_ = pc; }
 	///
-	void setFormattedCounter(docstring fc) { formatted_counter_ = fc; }
+	void setFormattedCounter(docstring const & fc) { formatted_counter_ = fc; }
 	///
 	int rowFlags() const override { return CanBreakBefore | CanBreakAfter; }
 	/// Updates only the label string, doesn't handle undo nor references.