QDoc: Code cleanup, use nullptr for nullptr constants

Replace 0 as nullptr constant with nullptr.
Remove reduntant semi-colons after member function definitions.
Adjust whitespace on lines otherwise touched.

Change-Id: I6af218ca8377611040360e0a3da392e7cffd29e9
Reviewed-by: Martin Smith <martin.smith@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/qdoc/qdoctagfiles.cpp b/src/qdoc/qdoctagfiles.cpp
index 136ca87d7..2c934193b 100644
--- a/src/qdoc/qdoctagfiles.cpp
+++ b/src/qdoc/qdoctagfiles.cpp
@@ -47,7 +47,7 @@ QT_BEGIN_NAMESPACE
   This class handles the generation of the qdoc tag file.
  */
 
-QDocTagFiles* QDocTagFiles::qdocTagFiles_ = NULL;
+QDocTagFiles* QDocTagFiles::qdocTagFiles_ = nullptr;
 
 /*!
   Constructs the singleton. \a qdb is the pointer to the
@@ -64,7 +64,7 @@ QDocTagFiles::QDocTagFiles()
  */
 QDocTagFiles::~QDocTagFiles()
 {
-    qdb_ = 0;
+    qdb_ = nullptr;
 }
 
 /*!
@@ -85,7 +85,7 @@ void QDocTagFiles::destroyQDocTagFiles()
 {
     if (qdocTagFiles_) {
         delete qdocTagFiles_;
-        qdocTagFiles_ = 0;
+        qdocTagFiles_ = nullptr;
     }
 }