More nullptr usage in headers

Diff generated by running clang-tidy's modernize-use-nullptr checker on
the CMake-based Qt version.

Skipping src/3rdparty, examples/, tests/

Change-Id: Ib182074e2e2fd52f63093f73b3e2e4c0cb7af188
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/corelib/io/qurl_p.h b/src/corelib/io/qurl_p.h
index 1b9237e58a..e75de32e03 100644
--- a/src/corelib/io/qurl_p.h
+++ b/src/corelib/io/qurl_p.h
@@ -59,7 +59,7 @@ QT_BEGIN_NAMESPACE
 
 // in qurlrecode.cpp
 extern Q_AUTOTEST_EXPORT int qt_urlRecode(QString &appendTo, const QChar *begin, const QChar *end,
-                                          QUrl::ComponentFormattingOptions encoding, const ushort *tableModifications = 0);
+                                          QUrl::ComponentFormattingOptions encoding, const ushort *tableModifications = nullptr);
 
 // in qurlidna.cpp
 enum AceLeadingDot { AllowLeadingDot, ForbidLeadingDot };