Actually display the commit version. However may shorten it since it displays the full string.

src/wx/cmdevents.cpp

@@ -2519,7 +2519,7 @@ EVT_HANDLER(wxID_ABOUT, "About...")
 	if (!version.IsEmpty())
 		version = version + wxT("-");
 
-	version = version + wxT("Git:");
+	version = version + wxT(VERSION);
 #endif
 	ai.SetVersion(version);
 	// setting website, icon, license uses custom aboutbox on win32 & macosx

src/wx/panel.cpp

@@ -460,7 +460,7 @@ void GameArea::SetFrameTitle()
 
 	tit.append(wxT("VisualBoyAdvance-M "));
 #ifndef FINAL_BUILD
-	tit.append(_("Git:"));
+	tit.append(_(VERSION));
 #endif
 #ifndef NO_LINK
 	int playerId = GetLinkPlayerId();