QFile: fix coding style violation

Amends dd8131e3b2.

Change-Id: Ic7d440816ee7bada49740f15919e404860dd8ac7
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
 
 
 
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

src/corelib/io/qfile.cpp

@@ -62,7 +62,8 @@
 QT_BEGIN_NAMESPACE
 
 Q_DECL_COLD_FUNCTION
-static bool file_already_open(QFile &file, const char *where = nullptr) {
+static bool file_already_open(QFile &file, const char *where = nullptr)
+{
     qWarning("QFile::%s: File (%ls) already open", where ? where : "open", qUtf16Printable(file.fileName()));
     return false;
 }