Pass params of shareable type by const-ref rather than by value

...where passing them by value was not intentional.

Change-Id: Ifd5036d57b41fddeeacfbd3f5890881605b80647
Reviewed-by: Shawn Rutledge <[email protected]>
Reviewed-by: Thiago Macieira <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/tools/qdoc/qdocindexfiles.cpp b/src/tools/qdoc/qdocindexfiles.cpp
index 240704e1f95..efc0eb1e0f2 100644
--- a/src/tools/qdoc/qdocindexfiles.cpp
+++ b/src/tools/qdoc/qdocindexfiles.cpp
@@ -542,7 +542,7 @@ void QDocIndexFiles::readIndexSection(const QDomElement& element,
     QString groupsAttr = element.attribute("groups");
     if (!groupsAttr.isEmpty()) {
         QStringList groupNames = groupsAttr.split(",");
-        foreach (QString name, groupNames) {
+        foreach (const QString &name, groupNames) {
             qdb_->addToGroup(name, node);
         }
     }