Add missing \since 5.0 to QProcess::{program,arguments}.

Change-Id: Ie2ce1860e1c63c0955b0a2bee7f8b33c91b9f628
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>

src/corelib/io/qprocess.cpp

@@ -2227,6 +2227,8 @@ void QProcess::start(const QString &command, OpenMode mode)
 }
 
 /*!
+    \since 5.0
+
     Returns the program the process was last started with.
 
     \sa start()
@@ -2256,6 +2258,8 @@ void QProcess::setProgram(const QString &program)
 }
 
 /*!
+    \since 5.0
+
     Returns the command line arguments the process was last started with.
 
     \sa start()