[Doc] Fix minor typos

Change-Id: I7e74806218dcc07d800f4ec08e94abce32483f5e
Reviewed-by: Samuel Gaist <samuel.gaist@idiap.ch>

src/corelib/plugin/qpluginloader.cpp

@@ -92,7 +92,7 @@ QT_BEGIN_NAMESPACE
     but if other instances of QPluginLoader are using the same
     library, the call will fail, and unloading will only happen when
     every instance has called unload(). Right before the unloading
-    happen, the root component will also be deleted.
+    happens, the root component will also be deleted.
 
     See \l{How to Create Qt Plugins} for more information about
     how to make your application extensible through plugins.

src/corelib/serialization/qcborarray.cpp

@@ -273,7 +273,7 @@ QCborValue QCborArray::at(qsizetype i) const
     not be empty.
 
     QCborValueRef has the exact same API as \l QCborValue, with one important
-    difference: if you assign new values to it, this map will be updated with
+    difference: if you assign new values to it, this array will be updated with
     that new value.
 
     \sa operator[](), at(), last(), insert(), prepend(), append(),
@@ -287,7 +287,7 @@ QCborValue QCborArray::at(qsizetype i) const
     not be empty.
 
     QCborValueRef has the exact same API as \l QCborValue, with one important
-    difference: if you assign new values to it, this map will be updated with
+    difference: if you assign new values to it, this array will be updated with
     that new value.
 
     \sa operator[](), at(), first(), insert(), prepend(), append(),
@@ -302,7 +302,7 @@ QCborValue QCborArray::at(qsizetype i) const
     with undefined entries, until it has an entry at the specified index.
 
     QCborValueRef has the exact same API as \l QCborValue, with one important
-    difference: if you assign new values to it, this map will be updated with
+    difference: if you assign new values to it, this array will be updated with
     that new value.
 
     \sa at(), first(), last(), insert(), prepend(), append(),

src/corelib/serialization/qjsonarray.cpp

@@ -845,7 +845,7 @@ bool QJsonArray::operator!=(const QJsonArray &other) const
     The return value is of type QJsonValueRef, a helper class for QJsonArray
     and QJsonObject. When you get an object of type QJsonValueRef, you can
     use it as if it were a reference to a QJsonValue. If you assign to it,
-    the assignment will apply to the character in the QJsonArray of QJsonObject
+    the assignment will apply to the element in the QJsonArray or QJsonObject
     from which you got the reference.
 
     \sa operator+()

src/corelib/serialization/qjsoncbor.cpp

@@ -421,7 +421,7 @@ QJsonArray QCborArray::toJsonArray() const
 }
 
 /*!
-    Recursively converts every \l QCborValue value in this array to JSON using
+    Recursively converts every \l QCborValue value in this map to JSON using
     QCborValue::toJsonValue() and creates a string key for all keys that aren't
     strings, then returns the corresponding QJsonObject composed of those
     associations.

src/corelib/tools/qalgorithms.qdoc

@@ -155,8 +155,8 @@
 
     \section2 Porting guidelines
 
-    Most of the times, an application using the deprecated Qt algorithmic functions
-    can be easily ported to use the equivalent STL functions. You need to
+    Most of the time, an application using the deprecated Qt algorithmic functions
+    can be easily ported to use the equivalent STL functions. You need to:
 
     \list 1
         \li add the \c{#include <algorithm>} preprocessor directive;

src/corelib/tools/qstring.cpp

@@ -2130,7 +2130,7 @@ int QString::toUcs4_helper(const ushort *uc, int length, uint *out)
 
     If \a size is negative, \a unicode is assumed to point to a \\0'-terminated
     array and its length is determined dynamically. The terminating
-    nul-character is not considered part of the string.
+    null character is not considered part of the string.
 
     QString makes a deep copy of the string data. The unicode data is copied as
     is and the Byte Order Mark is preserved if present.
@@ -5884,7 +5884,7 @@ QString QString::trimmed_helper(QString &str)
 
     The return value is of type QCharRef, a helper class for QString.
     When you get an object of type QCharRef, you can use it as if it
-    were a QChar &. If you assign to it, the assignment will apply to
+    were a reference to a QChar. If you assign to it, the assignment will apply to
     the character in the QString from which you got the reference.
 
     \sa at()

src/gui/painting/qpagedpaintdevice.cpp

@@ -85,7 +85,7 @@ QPagedPaintDevicePrivate::~QPagedPaintDevicePrivate()
     \class QPagedPaintDevice
     \inmodule QtGui
 
-    \brief The QPagedPaintDevice class is a represents a paintdevice that supports
+    \brief The QPagedPaintDevice class represents a paint device that supports
     multiple pages.
 
     \ingroup painting

src/widgets/dialogs/qfontdialog.cpp

@@ -163,7 +163,7 @@ QFontDialog::QFontDialog(QWidget *parent)
     \since 4.5
 
     Constructs a standard font dialog with the given \a parent and specified
-    \a initial color.
+    \a initial font.
 */
 QFontDialog::QFontDialog(const QFont &initial, QWidget *parent)
     : QFontDialog(parent)

src/widgets/doc/src/widgets-and-layouts/layout.qdoc

@@ -220,7 +220,7 @@
 
     When you make your own widget class, you should also communicate its layout
     properties. If the widget uses one of Qt's layouts, this is already taken
-    care of. If the widget does not have any child widgets, or uses manual
+    care of. If the widget does not have any child widgets, or uses a manual
     layout, you can change the behavior of the widget using any or all of the
     following mechanisms:
 

src/widgets/graphicsview/qgraphicsscene.cpp

@@ -2805,7 +2805,7 @@ QGraphicsPolygonItem *QGraphicsScene::addPolygon(const QPolygonF &polygon,
     Note that the item's geometry is provided in item coordinates, and its
     position is initialized to (0, 0). For example, if a QRect(50, 50, 100,
     100) is added, its top-left corner will be at (50, 50) relative to the
-    origin in the items coordinate system.
+    origin in the item's coordinate system.
 
     If the item is visible (i.e., QGraphicsItem::isVisible() returns \c true),
     QGraphicsScene will emit changed() once control goes back to the event

src/widgets/widgets/qcombobox.cpp

@@ -2611,7 +2611,7 @@ bool QComboBoxPrivate::showNativePopup()
 
 /*!
     Displays the list of items in the combobox. If the list is empty
-    then the no items will be shown.
+    then no items will be shown.
 
     If you reimplement this function to show a custom pop-up, make
     sure you call hidePopup() to reset the internal state.

src/widgets/widgets/qcommandlinkbutton.cpp

@@ -58,7 +58,7 @@ QT_BEGIN_NAMESPACE
     \ingroup basicwidgets
     \inmodule QtWidgets
 
-    The command link is a new control that was introduced by Windows Vista. It's
+    The command link is a new control that was introduced by Windows Vista. Its
     intended use is similar to that of a radio button in that it is used to choose
     between a set of mutually exclusive options. Command link buttons should not
     be used by themselves but rather as an alternative to radio buttons in