Generic Project: Fix relative paths outside of project directory

The paths are later split on '/' and thus should not end in '/'.

Task-number: QTCREATORBUG-8840

Change-Id: I3fb1ddd53bb1e33123e20f683c481d56ad651d62
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Reviewed-by: Thorbjørn Lindeijer <bjorn@lindeijer.nl>

src/plugins/genericprojectmanager/genericprojectnodes.cpp

@@ -71,6 +71,8 @@ QHash<QString, QStringList> sortFilesIntoPaths(const QString &base, const QSet<Q
         } else {
             // `file' is not part of the project.
             relativeFilePath = baseDir.relativeFilePath(absoluteFilePath.toString());
+            if (relativeFilePath.endsWith(QLatin1Char('/')))
+                relativeFilePath.chop(1);
         }
 
         filesInPath[relativeFilePath].append(absoluteFileName);