Fix qdoc errors in PrinterInfo.

Document parameter and associate comment with function by removing newline.

Change-Id: Ib4bb07c325144ef3501aea81d9e49e09b007387d
Reviewed-by: Jan-Arve Sæther <jan-arve.saether@nokia.com>
Reviewed-by: Laszlo Papp <lpapp@kde.org>

src/printsupport/kernel/qprinterinfo.cpp

@@ -239,7 +239,7 @@ QPrinterInfo QPrinterInfo::defaultPrinter()
 }
 
 /*!
-    Returns the named printer.
+    Returns the printer \a printerName.
 
     The return value should be checked using isNull() before being
     used, in case the named printer does not exist.
@@ -247,7 +247,6 @@ QPrinterInfo QPrinterInfo::defaultPrinter()
     \since 5.0
     \sa isNull()
 */
-
 QPrinterInfo QPrinterInfo::printerInfo(const QString &printerName)
 {
     QPlatformPrinterSupport *ps = QPlatformPrinterSupportPlugin::get();