Fix some qdoc-warnings for 5.11

Rename example savegame and its snippets following
a6b697ca13945a174cff9f3e9b1af1cf61c0bea5.

Fix:
/qtbase/examples/corelib/serialization/savegame/doc/src/savegame.qdoc:28: warning: Cannot find file 'json/savegame/savegame.pro' or 'json/savegame/savegame.qmlproject'
qtbase/examples/corelib/serialization/savegame/doc/src/savegame.qdoc:98: (qdoc) warning: Cannot find file to quote from: 'json/savegame/level.cpp'
json
qtbase/src/network/ssl/qsslconfiguration.cpp:889: warning: Undocumented parameter 'name' in QSslConfiguration::setBackendConfigOption()
qtbase/src/corelib/tools/qbitarray.cpp:314: warning: No such parameter 'len' in QBitArray::fromBits()

Change-Id: If59512873ca2116b89490927fdbf9ea1d8b237a8
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
Reviewed-by: Martin Smith <martin.smith@qt.io>

examples/corelib/serialization/savegame/doc/src/savegame.qdoc

@@ -26,7 +26,7 @@
 ****************************************************************************/
 
 /*!
-    \example json/savegame
+    \example serialization/savegame
     \title JSON Save Game Example
 
     \brief The JSON Save Game example demonstrates how to save and load a
@@ -50,12 +50,12 @@
 
     It provides read() and write() functions to serialise its member variables.
 
-    \snippet json/savegame/character.h 0
+    \snippet serialization/savegame/character.h 0
 
     Of particular interest to us are the read and write function
     implementations:
 
-    \snippet json/savegame/character.cpp 0
+    \snippet serialization/savegame/character.cpp 0
 
     In the read() function, we assign Character's members values from the
     QJsonObject argument. You can use either \l QJsonObject::operator[]() or
@@ -64,7 +64,7 @@
     check if the keys are valid before attempting to read them with
     QJsonObject::contains().
 
-    \snippet json/savegame/character.cpp 1
+    \snippet serialization/savegame/character.cpp 1
 
     In the write() function, we do the reverse of the read() function; assign
     values from the Character object to the JSON object. As with accessing
@@ -74,13 +74,13 @@
 
     Next up is the Level class:
 
-    \snippet json/savegame/level.h 0
+    \snippet serialization/savegame/level.h 0
 
     We want to have several levels in our game, each with several NPCs, so we
     keep a QVector of Character objects. We also provide the familiar read() and
     write() functions.
 
-    \snippet json/savegame/level.cpp 0
+    \snippet serialization/savegame/level.cpp 0
 
     Containers can be written and read to and from JSON using QJsonArray. In our
     case, we construct a QJsonArray from the value associated with the key
@@ -94,7 +94,7 @@
     element is used as the key to construct the container when reading it back
     in.
 
-    \snippet json/savegame/level.cpp 1
+    \snippet serialization/savegame/level.cpp 1
 
     Again, the write() function is similar to the read() function, except
     reversed.
@@ -102,7 +102,7 @@
     Having established the Character and Level classes, we can move on to
     the Game class:
 
-    \snippet json/savegame/game.h 0
+    \snippet serialization/savegame/game.h 0
 
     First of all, we define the \c SaveFormat enum. This will allow us to
     specify the format in which the game should be saved: \c Json or \c Binary.
@@ -112,12 +112,12 @@
 
     The read() and write() functions are used by saveGame() and loadGame().
 
-    \snippet json/savegame/game.cpp 0
+    \snippet serialization/savegame/game.cpp 0
 
     To setup a new game, we create the player and populate the levels and their
     NPCs.
 
-    \snippet json/savegame/game.cpp 1
+    \snippet serialization/savegame/game.cpp 1
 
     The first thing we do in the read() function is tell the player to read
     itself. We then clear the level array so that calling loadGame() on the
@@ -125,11 +125,11 @@
 
     We then populate the level array by reading each Level from a QJsonArray.
 
-    \snippet json/savegame/game.cpp 2
+    \snippet serialization/savegame/game.cpp 2
 
     We write the game to JSON similarly to how we write Level.
 
-    \snippet json/savegame/game.cpp 3
+    \snippet serialization/savegame/game.cpp 3
 
     When loading a saved game in loadGame(), the first thing we do is open the
     save file based on which format it was saved to; \c "save.json" for JSON,
@@ -144,7 +144,7 @@
     After constructing the QJsonDocument, we instruct the Game object to read
     itself and then return \c true to indicate success.
 
-    \snippet json/savegame/game.cpp 4
+    \snippet serialization/savegame/game.cpp 4
 
     Not surprisingly, saveGame() looks very much like loadGame(). We determine
     the file extension based on the format, print a warning and return \c false
@@ -155,7 +155,7 @@
 
     We are now ready to enter main():
 
-    \snippet json/savegame/main.cpp 0
+    \snippet serialization/savegame/main.cpp 0
 
     Since we're only interested in demonstrating \e serialization of a game with
     JSON, our game is not actually playable. Therefore, we only need
@@ -169,7 +169,7 @@
     assume that the player had a great time and made lots of progress, altering
     the internal state of our Character, Level and Game objects.
 
-    \snippet json/savegame/main.cpp 1
+    \snippet serialization/savegame/main.cpp 1
 
     When the player has finished, we save their game. For demonstration
     purposes, we can serialize to either JSON or binary. You can examine the

src/corelib/tools/qbitarray.cpp

@@ -315,7 +315,7 @@ void QBitArray::fill(bool value, int begin, int end)
     \since 5.11
 
     Creates a QBitArray with the dense bit array located at \a data, with \a
-    len bits. The byte array at \a data must be at least \a size / 8 (rounded up)
+    size bits. The byte array at \a data must be at least \a size / 8 (rounded up)
     bytes long.
 
     If \a size is not a multiple of 8, this function will include the lowest

src/network/ssl/qsslconfiguration.cpp

@@ -889,7 +889,7 @@ QMap<QByteArray, QVariant> QSslConfiguration::backendConfig() const
 /*!
     \since 5.11
 
-    Sets an option in the backend-specific configuration.
+    Sets the option \a name in the backend-specific configuration to \a value.
 
     Options supported by the OpenSSL (>= 1.0.2) backend are available in the \l
     {https://www.openssl.org/docs/manmaster/man3/SSL_CONF_cmd.html#SUPPORTED-CONFIGURATION-FILE-COMMANDS}