Fix file names in header comments

No real changes, just fix comments containing copy-and-paste typos.

Closes https://github.com/wxWidgets/wxWidgets/pull/984

src/aui/tabartmsw.cpp

@@ -1,6 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        wx/aui/tabartmsw.h
-// Purpose:     wxAuiMSWTabArt declaration
+// Name:        src/aui/tabartmsw.cpp
+// Purpose:     wxAuiMSWTabArt implementation
 // Author:      Tobias Taschner
 // Created:     2015-09-26
 // Copyright:   (c) 2015 wxWidgets development team

src/generic/bannerwindow.cpp

@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        wx/bannerwindow.h
+// Name:        src/generic/bannerwindow.cpp
 // Purpose:     wxBannerWindow class implementation
 // Author:      Vadim Zeitlin
 // Created:     2011-08-16

src/qt/clipbrd.cpp

@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        wx/qt/toolbar.h
+// Name:        src/qt/clipbrd.cpp
 // Author:      Sean D'Epagnier
 // Copyright:   (c) Sean D'Epagnier 2014
 // Licence:     wxWindows licence

src/qt/colour.cpp

@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        wx/qt/colour.h
+// Name:        src/qt/colour.cpp
 // Purpose:     wxColour class implementation for wxQt
 // Author:      Kolya Kosenko
 // Created:     2010-05-12

src/qt/dataobj.cpp

@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        wx/qt/dataform.h
+// Name:        src/qt/dataobj.cpp
 // Author:      Peter Most
 // Copyright:   (c) Peter Most
 // Licence:     wxWindows licence

src/qt/nonownedwnd.cpp

@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        wx/qt/nonownedwnd.h
+// Name:        src/qt/nonownedwnd.cpp
 // Author:      Sean D'Epagnier
 // Copyright:   (c) 2016 wxWidgets dev team
 // Licence:     wxWindows licence